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andrewplummer/sugar

4,511JavaScriptAudience · developerComplexity · 2/5LicenseSetup · easy

TLDR

A JavaScript library that adds hundreds of helper methods to the language's built-in types, arrays, strings, numbers, dates, and objects, making common tasks like date formatting, array manipulation, and string cleanup much less repetitive.

Mindmap

mindmap
  root((Sugar.js))
    What it does
      Extends JS built-ins
      Helper methods
    Modules
      Arrays
      Dates
      Strings
      Numbers
      Objects
    Features
      Locale support
      Polyfills
      npm modular
    Use cases
      Date formatting
      Array utilities
      String manipulation
    Audience
      JavaScript developers
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Things people build with this

USE CASE 1

Format and manipulate dates in plain JavaScript without adding a large library like moment.js.

USE CASE 2

Chain array and string operations expressively without writing repetitive utility functions for every project.

USE CASE 3

Add modern JavaScript ES5/ES6 features to code that must support older browsers using Sugar's polyfill modules.

USE CASE 4

Build i18n-aware date parsing and formatting across a dozen locales without external dependencies.

Tech stack

JavaScriptnpm

Getting it running

Difficulty · easy Time to first run · 5min

No external dependencies, can be loaded via a single CDN script tag or installed modularly through npm.

Use freely for any purpose including commercial, keep the MIT license and copyright notice when redistributing.

In plain English

Sugar is a JavaScript library that adds extra methods to the built-in types that JavaScript already provides, such as arrays, strings, numbers, dates, and objects. Rather than introducing entirely new abstractions, it extends the language's existing foundations with helpers that developers tend to need repeatedly. The idea is that working with dates, formatting strings, manipulating arrays, and rounding numbers should feel less repetitive and more expressive than the default JavaScript experience allows. The library is organized into modules, each corresponding to a built-in type. There are modules for arrays, dates, numbers, strings, objects, functions, regular expressions, and ranges. There are also optional polyfill modules for ES5 and ES6 features, which add modern JavaScript capabilities to older browsers. An extra Language module handles character script detection and conversion, and an Inflections module handles things like pluralizing words and normalizing strings. The date module supports over a dozen locales, covering European languages, Japanese, Korean, Chinese, and others. Sugar can be loaded in a browser directly from the dist folder, or pulled in via npm. The npm package is modular, so you can require only the specific module or even the individual method you need rather than loading the entire library. This makes it practical to use with build tools that strip out unused code. Developers can also create custom browser builds through the project's website download page. One notable design choice is that Sugar does not extend native prototypes by default. When used through npm, methods are called on Sugar's own wrapper objects. Calling Sugar.extend() explicitly opts into adding methods directly onto native prototypes, which is the older style the library originally used. This gives developers the choice between a safer modular style and the more concise chaining style. The library also supports defining and publishing your own methods in the same style as the built-in ones, which is intended for developers who want to build plugins on top of Sugar. Documentation and a quickstart guide are available at sugarjs.com.

Copy-paste prompts

Prompt 1
Show me how to use Sugar.js to parse the string 'last Friday at 3pm' into a JavaScript Date object and then format it as 'Month D, YYYY'.
Prompt 2
Using Sugar's Array module, write code to find the average of a list of numbers, group an array of objects by a key, and remove duplicate entries.
Prompt 3
How do I use Sugar.js through npm without extending native prototypes, so it doesn't conflict with other libraries in my project?
Prompt 4
Show me how to use Sugar's String module to truncate a sentence at 50 characters without cutting a word in half, then capitalize the first letter.
Prompt 5
How do I call Sugar.extend() to opt into the prototype extension style, and what are the tradeoffs compared to the default wrapper style?
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