This section documents API usage specific to this template, so for an introduction we suggest you refer to the generic API documentation instead.

Template data

There are three different formats in which you can supply data to this template. The most convenient for you to use likely depends on the source of your data, as described below.

1. Array of arrays, and a bindings object

You can supply arrays of arrays to opts.data, which might look like:

{
    data: {
        questions: [
            [ "QuestionsColumn1Value1", "QuestionsColumn2Value1",
            [ "QuestionsColumn1Value2", "QuestionsColumn2Value2",
            [ "QuestionsColumn1Value3", "QuestionsColumn2Value3",
            ...
        ],
        scores: [
            [ "ScoresColumn1Value1", "ScoresColumn2Value1",
            [ "ScoresColumn1Value2", "ScoresColumn2Value2",
            [ "ScoresColumn1Value3", "ScoresColumn2Value3",
            ...
        ],
        results: [
            [ "ResultsColumn1Value1", "ResultsColumn2Value1",
            [ "ResultsColumn1Value2", "ResultsColumn2Value2",
            [ "ResultsColumn1Value3", "ResultsColumn2Value3",
            ...
        ]
    }
}

where each array of arrays represents the rows in a data sheet.

To tell the API how the values from each column should be associated with the keys that the template is expecting, you must also supply an object attached to opts.bindings. (The meanings of the keys in the bindings object are documented below.) The minimal bindings you can supply for this template are as shown in this example:

{
    template: "@flourish/quiz",
    version: "8",
    bindings: {
        questions: {
            text: 0, // index of a column in your data
            input_type: 2, // index of a column in your data
        },
        scores: {
            question: 0, // index of a column in your data
            range: 1, // index of a column in your data
        },
        results: {
            range: 0, // index of a column in your data
        }
    },
    data: {
        questions: [
            [ "QuestionsColumn1Value1", "QuestionsColumn2Value1",
            [ "QuestionsColumn1Value2", "QuestionsColumn2Value2",
            [ "QuestionsColumn1Value3", "QuestionsColumn2Value3",
            ...
        ],
        scores: [
            [ "ScoresColumn1Value1", "ScoresColumn2Value1",
            [ "ScoresColumn1Value2", "ScoresColumn2Value2",
            [ "ScoresColumn1Value3", "ScoresColumn2Value3",
            ...
        ],
        results: [
            [ "ResultsColumn1Value1", "ResultsColumn2Value1",
            [ "ResultsColumn1Value2", "ResultsColumn2Value2",
            [ "ResultsColumn1Value3", "ResultsColumn2Value3",
            ...
        ]
    }
}

All possible bindings that you can supply are shown in this example:

{
    template: "@flourish/quiz",
    version: "8",
    bindings: {
        questions: {
            text: 0, // index of a column in your data
            explanation: 1, // index of a column in your data
            input_type: 2, // index of a column in your data
            answers: [3, 4, ...], // index(es) of column(s) in your data
            suffix: 5, // index of a column in your data
            choices: 6, // index of a column in your data
        },
        scores: {
            question: 0, // index of a column in your data
            range: 1, // index of a column in your data
            explanation: 2, // index of a column in your data
            media: 3, // index of a column in your data
        },
        results: {
            range: 0, // index of a column in your data
            text: 1, // index of a column in your data
            media: 2, // index of a column in your data
        }
    },
    data: {
        questions: [
            [ "QuestionsColumn1Value1", "QuestionsColumn2Value1",
            [ "QuestionsColumn1Value2", "QuestionsColumn2Value2",
            [ "QuestionsColumn1Value3", "QuestionsColumn2Value3",
            ...
        ],
        scores: [
            [ "ScoresColumn1Value1", "ScoresColumn2Value1",
            [ "ScoresColumn1Value2", "ScoresColumn2Value2",
            [ "ScoresColumn1Value3", "ScoresColumn2Value3",
            ...
        ],
        results: [
            [ "ResultsColumn1Value1", "ResultsColumn2Value1",
            [ "ResultsColumn1Value2", "ResultsColumn2Value2",
            [ "ResultsColumn1Value3", "ResultsColumn2Value3",
            ...
        ]
    }
}

2. Array of objects with arbitrary keys, and a bindings object

This format is most likely useful when you have data from an external source, such as CSV data loaded from d3-dsv. You should supply this attached to the opts.data, which might look like:

{
        questions: [
            { "QuestionsHeader1": ..., "QuestionsHeader2": ..., ... },
            { "QuestionsHeader1": ..., "QuestionsHeader2": ..., ... },
            { "QuestionsHeader1": ..., "QuestionsHeader2": ..., ... },
            ...
        ],
        scores: [
            { "ScoresHeader1": ..., "ScoresHeader2": ..., ... },
            { "ScoresHeader1": ..., "ScoresHeader2": ..., ... },
            { "ScoresHeader1": ..., "ScoresHeader2": ..., ... },
            ...
        ],
        results: [
            { "ResultsHeader1": ..., "ResultsHeader2": ..., ... },
            { "ResultsHeader1": ..., "ResultsHeader2": ..., ... },
            { "ResultsHeader1": ..., "ResultsHeader2": ..., ... },
            ...
        ]
    }

... but with the keys being the column headers from your source data instead. You must also supply an object attached to opts.bindings. The minimal bindings you can supply for this template are as shown in this example:

{
    template: "@flourish/quiz",
    version: "8",
    bindings: {
        questions: {
            text: "QuestionsHeader1",
            input_type: "QuestionsHeader3",
        },
        scores: {
            question: "ScoresHeader1",
            range: "ScoresHeader2",
        },
        results: {
            range: "ResultsHeader1",
        }
    },
    data: {
        questions: [
            { "QuestionsHeader1": ..., "QuestionsHeader2": ..., ... },
            { "QuestionsHeader1": ..., "QuestionsHeader2": ..., ... },
            { "QuestionsHeader1": ..., "QuestionsHeader2": ..., ... },
            ...
        ],
        scores: [
            { "ScoresHeader1": ..., "ScoresHeader2": ..., ... },
            { "ScoresHeader1": ..., "ScoresHeader2": ..., ... },
            { "ScoresHeader1": ..., "ScoresHeader2": ..., ... },
            ...
        ],
        results: [
            { "ResultsHeader1": ..., "ResultsHeader2": ..., ... },
            { "ResultsHeader1": ..., "ResultsHeader2": ..., ... },
            { "ResultsHeader1": ..., "ResultsHeader2": ..., ... },
            ...
        ]
    }
}

All possible bindings that you can supply are shown in this example:

{
    template: "@flourish/quiz",
    version: "8",
    bindings: {
        questions: {
            text: "QuestionsHeader1",
            explanation: "QuestionsHeader2",
            input_type: "QuestionsHeader3",
            answers: ["QuestionsHeader4", "QuestionsHeader5", ...],
            suffix: "QuestionsHeader6",
            choices: "QuestionsHeader7",
        },
        scores: {
            question: "ScoresHeader1",
            range: "ScoresHeader2",
            explanation: "ScoresHeader3",
            media: "ScoresHeader4",
        },
        results: {
            range: "ResultsHeader1",
            text: "ResultsHeader2",
            media: "ResultsHeader3",
        }
    },
    data: {
        questions: [
            { "QuestionsHeader1": ..., "QuestionsHeader2": ..., ... },
            { "QuestionsHeader1": ..., "QuestionsHeader2": ..., ... },
            { "QuestionsHeader1": ..., "QuestionsHeader2": ..., ... },
            ...
        ],
        scores: [
            { "ScoresHeader1": ..., "ScoresHeader2": ..., ... },
            { "ScoresHeader1": ..., "ScoresHeader2": ..., ... },
            { "ScoresHeader1": ..., "ScoresHeader2": ..., ... },
            ...
        ],
        results: [
            { "ResultsHeader1": ..., "ResultsHeader2": ..., ... },
            { "ResultsHeader1": ..., "ResultsHeader2": ..., ... },
            { "ResultsHeader1": ..., "ResultsHeader2": ..., ... },
            ...
        ]
    }
}

(As before, the keys containing "Header" would be replaced by column names from your data source.)

3. Array of objects with template-defined keys

There is an alternative format you can use, which is likely to be easier to use if your data is not from a spreadsheet source. With this alternative format you supply your data to the template as an array of objects, attached to opts.data, where the keys must be those used by the template, as documented below. In this case there is no need to supply a bindings object, since the key names are already those expected by the template. The required properties in the data object are as follows (scroll down for a description of what each property is):

{
    template: "@flourish/quiz",
    version: "8",
    data: {
    questions: [
        {
            text: ...,
            input_type: ...,
            answers: [...]
        },
        ...
    ],
    scores: [
        {
            question: ...,
            range: ...
        },
        ...
    ],
    results: [
        {
            range: ...
        },
        ...
    ]
},
    ...
}

And the full list of all possible properties is as follows:

{
    template: "@flourish/quiz",
    version: "8",
    data: {
    questions: [
        {
            text: ...,
            explanation: ...,
            input_type: ...,
            answers: [...],
            suffix: ...,
            choices: ...
        },
        ...
    ],
    scores: [
        {
            question: ...,
            range: ...,
            explanation: ...,
            media: ...
        },
        ...
    ],
    results: [
        {
            range: ...,
            text: ...,
            media: ...
        },
        ...
    ]
},
    ...
}

Meanings of the template data keys:

• questions.text: Question text
• questions.explanation: A short text explanation accompanying the question
• questions.input_type: Type of answer input, choose between <b>slider</b> or <b>multiple choice</b>
• questions.answers: The correct answer to the question. The score will be decided by the difference between this answer and your input. <br><br>It's possible to select multiple columns with answers; this will create a dropdown list above the quiz where you can select which answer to compare to.
• questions.suffix: Add a suffix after the value, eg. "%" or "people" (only for <b>slider</b> input type)
• questions.choices: Options to show in multiple choice questions. Divide using "::" (eg. "Cat :: Dog :: Sheep :: Badger")
• scores.question: Question that the answer belongs to
• scores.range: The answer to the question. This can be text for multiple choice questions. For slider answers, you can use numbers or number ranges, values could be "0-10" or "4" or "*" to select all answers. <br><br>You can also add multiple rows with score ranges per question; the more specific scores will take priority (e.g. it will choose "4" over "0-10" over "*")
• scores.explanation: Text to show after answering question
• scores.media: Picture to show after answering question
• results.range: A range of points you're targeting. You can use numbers or number ranges, values could be "0-10" or "4" or "*" to select all answers. <br><br>You can also add multiple rows with score ranges per question; the more specific scores will take priority (e.g. it will choose "4" over "0-10" over "*")
• results.text: text
• results.media: An image to show with the result. Add an image URL or right-click on a cell to upload an image.

Template settings

Options for opts.state.

Design

color_primary color

User input.

color_neutral color

Neutral.

color_correct color

Correct.

block_text_color color

Color.

text_border_color color

Border color.

block_text_size string

Size.

block_text_size_custom number

Custom. Specify a custom responsive font size. Best results will be with values between 1.2 and 3

block_background color

Background.

block_padding number

Padding.

block_border_width number

Width.

block_border_color color

Color.

block_border_radius number

Radius.

block_shadow boolean

Enabled.

block_shadow_blur number

Blur.

block_shadow_opacity number

Opacity.

block_btn_text_color color

Text color.

block_btn_text_size string

Size.

block_btn_text_size_custom number

Custom. Specify a custom responsive font size. Best results will be with values between 1.2 and 3

show_all_questions boolean

Show unanswered questions.

Slider

slider_handle_fill color

Color.

slider_handle_radius number

Radius.

slider_handle_stroke number

Border.

slider_channel_fill color

Color.

slider_channel_height number

Height.

slider_comparison_opacity number

Comparison opacity.

slider_range_type string

Slider range. In Auto mode, the range will go from 0 to the nearest power of 10.

In Fixed mode, you can set a fixed range for every question.

In Custom mode, you can set a range for each individual question.

slider_range_min number

Min.

slider_range_max number

Max.

slider_range_step number

Step.

slider_range_custom text

Custom. Set a custom range for each question. Write a new range on each line with the following format:

[question text] :: [range minimum] :: [range maximum] :: [range step].
<

---

For example:

How many people live in London? :: 1000000 :: 20000000 :: 1000

slider_number_format.prefix string

Prefix. Text to place in front of number

slider_number_format.suffix string

Suffix. Text to place after number

slider_number_format.n_dec number

Decimal places. Enter a negative integer to round to a whole number with that many zeros. For example, -2 will round to the nearest hundred.

Max: 10

slider_number_format.advanced boolean

Advanced.

slider_number_format.negative_sign string

Styling of negative numbers.

Allowed values:

• -$nk (-$100k)
• $-nk ($-100k)
• ($nk) (($100k))
• $(n)k ($(100)k)
• none ($100k)

slider_number_format.strip_zeros boolean

Remove trailing zeros.

slider_number_format.strip_separator boolean

Hide thousands separator below 10,000. Turn off if you want four-digit numbers to include a separator, e.g. “1,234” rather than “1234”.

slider_number_format.transform_labels boolean

Multiply/divide values.

slider_number_format.transform string

Allowed values:

• multiply (Multiply by)
• divide (Divide by)
• exponentiate (×10 to the power of)

slider_number_format.multiply_divide_constant number

slider_number_format.exponentiate_constant number

Multiple choice

mc_background color

Background.

mc_border_color color

Color.

mc_border_width number

Width.

mc_border_radius number

Radius.

Scoring

dropdown boolean

Allowed values:

• true (Enabled)
• false (Disabled)

dropdown_default_label string

Default comparison. Type in an answer that's selected as a default when you load the visualization

dropdown_label_color color

Text color.

slider_advanced_scoring boolean

Linear scores for slider questions. Rather than a slider answer just being "right" or "wrong", change this setting to get a higher score the closer you are to the correct answer

slider_score_zone_percent number

Scoring zone (%). Defines how close (as a percentage of the slider range) the input needs to be to the correct answer to produce a score.

For example, for a slider range of 0 to 200, a correct answer of 45, and a scoring zone of 10%, the score is non-zero if the input is between 25 and 65 (because 10% of the slider range is 20).

The score increases linearly from 0 at the scoring zone boundary to a score of 1 at the correct answer.

Max: 100

slider_correct_zone_percent number

Correct zone (%). Defines how close (as a percentage of the scoring zone) the input needs to be to the correct answer to produce a full score of 1.

For example, for a slider range of 0 to 200, a correct answer of 45, a scoring zone of 10%, and a correct zone of 50%, the score is 1 if the input is between 35 and 55 (because 50% of the scoring zone is 10).

The score increases linearly from the scoring zone boundary to the correct zone boundary. For example, inputs of 20, 25, 30, 35, or 40 scores 0, 0, 0.5, 1, or 1, respectively.

Max: 100

End result

end_result_default_text text

Default end result text. This is the text that shows up after you've finished the quiz. You can add custom end result text for specific score ranges in the Data tab, inside the End result sheet

Text and translation

text_your_answer string

Slider your answer.

text_submit string

Submit button.

text_dropdown_label string

Dropdown label.

Number formatting

localization.input_decimal_separator string

Decimal separator in data sheet. Used for interpreting your data. Only change if data is not displaying on the chart as expected.

Allowed values:

• . (.)
• , (,)

localization.output_separators string

Number format to display. How the numbers should appear on chart labels

Allowed values:

• ,. (12,235.67)
• ., (12.345,67)
• . (12235.67)
• , (12345,67)
• . (12 235.67)
• , (12 345,67)

Layout

Layout

layout.body_font font

Main font. This font will apply to the whole graphic by default. You can optionally change the font for the title, subtitle, footer, etc in the Header and Footer settings panels.

layout.font_color color

Text color. This color will apply to the whole graphic by default, You can optionally change the color for individual text elements, in other settings panels.

layout.background_color_enabled boolean

Color.

Allowed values:

• true (On)
• false (Off)

layout.background_image_enabled boolean

Image.

Allowed values:

• true (On)
• false (Off)

layout.background_color color

Background color.

layout.background_image_src url

Image URL.

layout.background_image_size string

Size.

Allowed values:

• cover (Fill)
• contain (Fit)
• auto (Original)
• 100% 100% (Stretch)

layout.background_image_position string

Position.

Allowed values:

• top left (Top left)
• top center (Top center)
• top right (Top right)
• center left (Center left)
• center center (Center)
• center right (Center right)
• bottom left (Bottom left)
• bottom center (Bottom center)
• bottom right (Bottom right)

layout.max_width_target string

Maximum width. Apply a maximum width to just the main graphic or everything (main graphic plus header, footer, etc).

layout.max_width number

Maximum width. Leave blank to stretch to container width

layout.max_width_align string

Align.

layout.layout_order string

Layout order.

layout.space_between_sections string

Space between sections.

layout.space_between_sections_custom number

Custom.

layout.margin_top number

Top.

layout.margin_right number

Right.

layout.margin_bottom number

Bottom.

layout.margin_left number

Left.

layout.border.enabled boolean

Show borders around visualisation.

layout.border.top.width number

Top.

layout.border.top.style string

Style.

layout.border.top.color color

Color.

layout.border.right.width number

Right.

layout.border.right.style string

Style.

layout.border.right.color color

Color.

layout.border.bottom.width number

Bottom.

layout.border.bottom.style string

Style.

layout.border.bottom.color color

Color.

layout.border.left.width number

Left.

layout.border.left.style string

Style.

layout.border.left.color color

Color.

layout.read_direction string

Read direction. This will change the reading direction of the main text elements on the page. It's not possible to adjust this on all elements, such as axes.

Note that when direction is set to right to left any alignment icons will be reversed.

layout.font_size_mobile_small number

layout.font_size_mobile_big number

layout.font_size_tablet number

layout.font_size_desktop number

layout.font_size_big_screen number

layout.breakpoint_mobile_small number

layout.breakpoint_mobile_big number

layout.breakpoint_tablet number

layout.breakpoint_desktop number

layout.breakpoint_big_screen number

Header

layout.header_align string

Alignment.

layout.title html

layout.title_styling boolean

Styling.

layout.title_font font

Title Font.

layout.title_size string

Size.

layout.title_size_custom number

Custom. Specify a custom responsive font size in rems. The best results will be with values between 1.2 and 3

layout.title_weight string

Weight.

layout.title_color color

Color.

layout.title_line_height number

Line height.

layout.title_space_above string

Space above.

layout.title_space_above_custom number

Custom.

layout.subtitle html

layout.subtitle_styling boolean

Styling.

layout.subtitle_font font

Subtitle Font.

layout.subtitle_size string

Size.

layout.subtitle_size_custom number

Custom. Specify a custom responsive font size in rems. The best results will be with values between 1.2 and 3

layout.subtitle_weight string

Weight.

layout.subtitle_color color

Color.

layout.subtitle_line_height number

Line height.

layout.subtitle_space_above string

Space above.

layout.subtitle_space_above_custom number

Custom.

layout.header_text html

layout.header_text_styling boolean

Styling.

layout.header_text_size string

Size.

layout.header_text_size_custom number

Custom. Specify a custom responsive font size in rems. The best results will be with values between 1.2 and 3

layout.header_text_weight string

Weight.

layout.header_text_color color

Color.

layout.header_text_line_height number

Line height.

layout.header_text_space_above string

Space above.

layout.header_text_space_above_custom number

Custom.

layout.header_border string

layout.header_border_width number

Width.

layout.header_border_color color

Color.

layout.header_border_style string

Style.

layout.header_border_space number

Space. Space between border and header text

layout.header_logo_enabled boolean

layout.header_logo_src url

Image.

layout.header_logo_alt string

Alt text.

layout.header_logo_link_url string

Link.

layout.header_logo_height number

Height.

layout.header_logo_align string

Align. Align logo inside either the header or the main visualization container

layout.header_logo_position_inside string

Position.

layout.header_logo_position_outside string

Position.

layout.header_logo_margin_top number

Top.

layout.header_logo_margin_right number

Right.

layout.header_logo_margin_bottom number

Bottom.

layout.header_logo_margin_left number

Left.

Footer

layout.footer_align string

Alignment.

layout.footer_text_size number

Size.

layout.footer_text_color color

Color.

layout.footer_styling boolean

Advanced footer styles.

layout.footer_font font

Font.

layout.footer_text_weight string

Weight.

layout.source_name string

Source name.

layout.source_url string

Source url.

layout.multiple_sources boolean

Multiple sources.

layout.source_name_2 string

Source name.

layout.source_url_2 string

Source url.

layout.source_name_3 string

Source name.

layout.source_url_3 string

Source url.

layout.source_label string

Source label.

layout.footer_note html

Note. To add the time/date stamp of when the data was last updated add {{data_last_updated}}. For example, "Last updated at {{data_last_updated}}". To customize the format, use the advanced options below.

layout.footer_note_secondary html

Note (secondary). The secondary note is placed below the source and primary note. To add the time/date stamp of when the data was last updated add {{data_last_updated}}. For example, "Last updated at {{data_last_updated}}". To customize the format, use the advanced options below.

layout.advanced_note_styling boolean

Advanced.

layout.footer_timestamp_format string

Time/date stamp formatting. To change the date/time format of your timestamp, choose from the below options or provide a custom date format in d3-time-format syntax

layout.footer_logo_enabled boolean

Image.

layout.footer_logo_src url

Image.

layout.footer_logo_src_light hidden

Image (light version). If provided this version will be used whenever the background color is dark

layout.footer_logo_alt string

Alt text.

layout.footer_logo_link_url string

Link.

layout.footer_logo_height number

Height.

layout.footer_logo_margin number

Margin.

layout.footer_logo_order string

Position.

layout.footer_align_vertical string

V. align.

layout.footer_border string

layout.footer_border_width number

Width.

layout.footer_border_color color

Color.

layout.footer_border_style string

Style.

layout.footer_border_space number

Space. Space between border and footer text

Accessibility

layout.screenreader_text_primary text

Screenreader description. A text alternative to the visual content that will only be visible to screenreaders, e.g. “The line chart shows China consistently higher than the other countries since 1990”.

Do not replicate your title, since that will also be read by screenreaders.

layout.screenreader_label string

Screenreader label. A short text label given to the main Flourish embed wrapper to provide an accessible name that is only visible to screenreaders. Added in the form of an "aria-label".

layout.screenreader_hide_primary boolean

Screenreader mode for main visual container. Whether the main visual container is visible to screenreaders. (Text in the header and footer are always available to screenreaders.)