d3plus-format

Shorthand formatters for common number types.

Installing

If using npm, npm install d3plus-format. Otherwise, you can download the latest release from GitHub or load from a CDN.

import modules from "d3plus-format";

d3plus-format can be loaded as a standalone library or bundled as part of D3plus. ES modules, AMD, CommonJS, and vanilla environments are supported. In vanilla, a d3plus global is exported:

<script src="https://cdn.jsdelivr.net/npm/d3plus-format@1"></script>
<script>
  console.log(d3plus);
</script>

Examples

Live examples can be found on d3plus.org, which includes a collection of example visualizations using d3plus-react. These examples are powered by the d3plus-storybook repo, and PRs are always welcome. :beers:

API Reference

• format - An extension to d3's format function that adds more string formatting types and localizations.

The new specifier strings added by d3plus-format are:

• .3~a - abbreviated decimal notation with a numeric suffix (ie. "k", "M", "B", etc). This is an alias of the formatAbbreviate function.

• formatAbbreviate - Formats a number to an appropriate number of decimal places and rounding, adding suffixes if applicable (ie. 1200000 to "1.2M").
• formatDate - A default set of date formatters, which takes into account both the interval in between in each data point but also the start/end data points.
• formatDefaultLocale - An extension to d3's formatDefaultLocale function that allows setting the locale globally for formatters.

• formatLocale - A set of default locale formatters used when assigning suffixes and currency in numbers.

| Name | Default | Description | |---|---|---| | separator | "" | Separation between the number with the suffix. | | suffixes | [] | List of suffixes used to format numbers. | | grouping | [3] | The array of group sizes, | | delimiters | {thousands: ",", decimal: "."} | Decimal and group separators. | | currency | ["$", ""] | The currency prefix and suffix. |

d3plus.format(specifier) <>

An extension to d3's format function that adds more string formatting types and localizations.

The new specifier strings added by d3plus-format are:

• .3~a - abbreviated decimal notation with a numeric suffix (ie. "k", "M", "B", etc). This is an alias of the formatAbbreviate function.

This is a global function.

d3plus.formatAbbreviate(n, locale) <>

Formats a number to an appropriate number of decimal places and rounding, adding suffixes if applicable (ie. 1200000 to "1.2M").

This is a global function.

| Param | Type | Description | | --- | --- | --- | | n | Number | String | The number to be formatted. | | locale | Object | String | The locale config to be used. If value is an object, the function will format the numbers according the object. The object must include suffixes, delimiter and currency properties. |

d3plus.formatDate(d, dataArray, [formatter]) <>

A default set of date formatters, which takes into account both the interval in between in each data point but also the start/end data points.

This is a global function.

| Param | Type | Default | Description | | --- | --- | --- | --- | | d | Date | | The date string to be formatted. | | dataArray | Array | | The full array of ordered Date Objects. | | [formatter] | function | d3.timeFormat | An optional instance of d3.timeFormat to be used for localization. |

d3plus.formatDefaultLocale(definition) <>

An extension to d3's formatDefaultLocale function that allows setting the locale globally for formatters.

This is a global function.

formatLocale <>

A set of default locale formatters used when assigning suffixes and currency in numbers.

| Name | Default | Description | |---|---|---| | separator | "" | Separation between the number with the suffix. | | suffixes | [] | List of suffixes used to format numbers. | | grouping | [3] | The array of group sizes, | | delimiters | {thousands: ",", decimal: "."} | Decimal and group separators. | | currency | ["$", ""] | The currency prefix and suffix. |

This is a global namespace.

Documentation generated on Thu, 18 Jan 2024 16:11:21 GMT