JavaScript Snippets (VSCode Extension)

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Introduction

JavaScript Snippets is a collection of JavaScript code snippets that allow for ⚡ supercharged ⚡ auto-completions in VSCode.

Features

Modern JavaScript with features from ES10+.
Strategically-ordered tabstops that take full advantage of IntelliSense.
Placeholders only added where they a) represent required values and b) do not interfere with navigation or IntelliSense.
Prefixes created with exact-match in mind, so that snippets do not need to be placed at the top of the suggestion list via modified VSCode settings (which would cause them to hide more relevant suggestions in some scenarios).
Snippets are interchangeable and versatile, as opposed to monolithic, in order to prevent snippet pollution.
Avoids adding syntax that is best added manually (when it disrupts navigation or Intellisense).
Includes snippets for commonly-needed utilities, which can be useful when experimenting in a scratch file or when working on small projects where you don't intend to import a JavaScript utility library (e.g. Lodash).
Includes snippets for advanced console logs that are colorized, grouped, and edge-case-resistant.

Style

These snippets follow the Airbnb style guide, valuing code safety, clarity, and low maintenance above all else. Brevity is preferred, but only when it does not negate the aforementioned objectives.

Not a fan of Airbnb's style guide? No problem, you can still use these snippets along with Prettier to have your code automatically formatted with your preferences.

Removing Snippets

To disable VSCode's built-in JavaScript snippets (which are lacking and — when combined with this snippet pack — redundant), use the Control Snippets extension.

Recommended Settings

{

  // Allows for tab completion of snippets even when quick suggestion list is not displayed.
  "editor.tabCompletion": "onlySnippets",

  "[javascript]": {
    // Keyword completions aren't that useful by themselves, and they appear above more useful
    // snippets when `editor.snippetSuggestions` is not set to `top`.
    "editor.suggest.filteredTypes": {
      "keyword": false,
    },
  },
}

Other Relevant Settings

{
  // // Obviously makes snippets easier to find and select, but pushes more-relevant suggestions down
  // // the list in some scenarios. Leaving this set to the default of `inline` will still almost
  // // always result in snippets being at the top when you expect them to (assuming there aren't
  // // other completions with the same exact-match as the snippet prefix).
  // "editor.snippetSuggestions": "top",

  // // By default, when in an active snippet, quick suggestions do not automatically appear. Instead,
  // // you're required to manually trigger IntelliSense. Enabling the following setting will allow
  // // suggestions to automatically appear, but it will also make navigating through tabstops
  // // inconvenient (you'll need to accept a suggestion or close the list before moving to the next
  // // tabstop). An alternate solution is to change the keybinding for `jumpToNextSnippetPlaceholder`,
  // // so that you're not using tab to simultaneously navigate through both suggestions and tabstops
  // "editor.suggest.snippetsPreventQuickSuggestions": false,
}

Included Snippets

Array

Prefix	Title	Description
`am`	arrayMerge	Shallow-copy a single array (clone) or multiple arrays (merge) to a new array literal via the spread operator.
`range`	range	An array containing a sequence of numbers from 0 up to, but not including, length.
`uniq`	uniq	Creates a duplicate-free version of an array.
`foreach`	forEach	Array.prototype.forEach() method.
`map`	map	Array.prototype.map() method.
`reduce`	reduce	Array.prototype.reduce() method.
`reduceright`	reduceRight	Array.prototype.reduceRight() method.
`filter`	filter	Array.prototype.filter() method.
`find`	find	Array.prototype.find() method.
`findindex`	findIndex	Array.prototype.findIndex() method.
`some`	some	Array.prototype.some() method.
`every`	every	Array.prototype.every() method.
`flatmap`	flatMap	Array.prototype.flatMap() method.

Assignment

Prefix	Title	Description
`ca`	constAssignment	Const assignment.
`la`	letAssignment	Let assignment.
`cad`	constAssignmentDestructuring	Const object destructuring assignment.
`lad`	letAssignmentDestructuring	Let object destructuring assignment.

Class

Prefix	Title	Description
`cs`	class	Class exported as default and named after the file (if file is not named index, in which case the class is named after the parent folder).
`cse`	classExtends	Subclass exported as default and named after the file (if file is not named index, in which case the class is named after the parent folder).
`ctr`	constructor	Class constructor.
`met`	method	Class method.

Conditional

Prefix	Title	Description
`if`	if	If statement.
`el`	else	Else statement.
`ei`	elseIf	Else-if statement.
`ter`	ternary	Ternary operator.
`switch`	switch	Switch statement.
`case`	case	Case clause.

Console

Prefix	Title	Description
`cl`	consoleLog	Console log.
`ce`	consoleError	Console error.
`cw`	consoleWarn	Console warn.
`clc`	consoleLogClipboard	Console log the value you have copied to your clipboard, inside of an object (for an automatic label).
`clm`	consoleLogMessage	Console log a message.
`clo`	consoleLogObject	Console log an object, in which variables can be inserted (for automatic labels).
`clr`	consoleLogReturn	Console log. Appended by the logical OR operator (for convenient logging in front of an arrow function's implicit return value).
`clmr`	consoleLogMessageReturn	Console log message. Appended by the logical OR operator (for convenient logging in front of an arrow function's implicit return value).
`clor`	consoleLogObjectReturn	Console log an object, in which variables can be inserted (for automatic labels). Appended by the logical OR operator (for convenient logging in front of an arrow function's implicit return value).
`clg`	consoleLogGroup	Console log, wrapped in a formatted and styled console group.
`cla`	consoleLogAnalysis	Console log an object, in which variables can be inserted. Includes value, type, count, and trace for all values. Includes log-time value and table for objects. Wrapped in a formatted and styled console group.

Exception

Prefix	Title	Description
`tc`	tryCatch	Try-catch statement.
`tcf`	tryCatchFinally	Try-catch-finally statement.
`tf`	tryFinally	Try-finally statement.
`te`	throwError	Throw error object exception.

Function

Prefix	Title	Description
`function`	function	Named function declaration.
`af`	arrowFunction	Anonymous arrow function expression.

JSON

Prefix	Title	Description
`jp`	jsonParse	JSON.parse() method.
`js`	jsonStringify	JSON.stringify() method.

Loop

Prefix	Title	Description
`dowhile`	doWhile	Do-while loop.
`while`	while	While loop.
`for`	for	For loop.
`forin`	forIn	For-in loop.
`forof`	forOf	For-of loop.

Miscellaneous

Prefix	Title	Description
`use`	useStrict	Use strict statement.

Module

Prefix	Title	Description
`imp`	import	Import module.
`expd`	exportDefault	Default export.
`exp`	export	Named export.

Object

Prefix	Title	Description
`om`	objectMerge	Shallow-copy a single object (clone) or multiple objects (merge) to a new object literal via the spread operator. Similar to the Object.assign() method, but has the added benefit of not allowing for shallow mutations.
`oe`	objectEntries	Object.entries() method.
`ofe`	objectFromEntries	Object.fromEntries() method.
`ok`	objectKeys	Object.keys() method.
`ov`	objectValues	Object.values() method.

Return

Prefix	Title	Description
`ret`	return	Return statement.
`retm`	returnMultiline	Return statement for multiline expression that includes complex values (e.g. JSX).

Scheduler

Prefix	Title	Description
`st`	setTimeout	setTimeout() method.
`si`	setInterval	setInterval() method.

Type

Prefix	Title	Description
`to`	typeof	typeof operator.
`io`	instanceof	instanceof operator.
`aia`	arrayIsArray	Array.isArray() method.
`isplainobject`	isPlainObject	Check if value is a plain object.
`isnil`	isNil	Check if value is null or undefined.

jabacchetta/vscode-javascript-snippets