L13 JavaScript and TypeScript Snippets

This extension contains keyword snippets and micro patterns for JavaScript and TypeScript.

This extension is part of the L13 Extension Pack.

What's new in L13 JS Snippets 0.15.0

Added support for JSON and JSONC.
Added support for JavaScript React and TypeScript React.

Introduction

The idea of those snippets is to create a workflow with micro patterns. Write one to four characters and you get the keyword or pattern.

Some prefixes are twice, because the rules are matching different patterns like s_ -> set NAME () { ... } and switch () { ... }. Then you have to pick the right one.

The following prefixes are just examples to explain the rules. To see the complete list, please visit SNIPPETS.md. If a keyword or pattern might be missing, please open an issue on Github and make a suggestion.

Shortcut rules for JavaScript

1. The first letter of a word or the upper case in camel or pascal case defines the prefix.

Prefix	Snippet
`a`	await
`f`	false
`t`	true

2. An underscore "_" defines a brace scope.

Prefix	Snippet
`_`	NAME () { ... }
`i_`	if (...) { ... }
`f_`	function NAME (...) { ... }
`af_`	async function NAME (...) { ... }
`d_w`	do { ... } while (...);

3. A dollar sign "$" at the end defines a function call.

Prefix	Snippet
`cl$`	console.log();
`Jp$`	JSON.parse();

4. The number "1" at the end defines a one line snippet.

Prefix	Snippet
`i1`	if (CONDITION) ...;
`c1`	const NAME = VALUE;
`l1`	let NAME = VALUE;

5. A dollar sign "$" at the start defines an arrow function.

Prefix	Snippet
`$_`	() => { ... }
`$1`	() =>

Shortcut rules for TypeScript

1. All JavaScript snippets and prefix rules described above are working in TypeScript, too.

Prefix	Snippet
`n_`	namespace NAME { ... }
`i_`	interface NAME { ... }
`ie_`	interface NAME extends NAME { ... }
`t1`	type NAME = TYPE;
`t_`	type NAME = { ... };

2. Variable declarations, properties and methods are available with primitive types and accessors, too.

Prefix	Snippet
`cb1`	const NAME:boolean = false;
`pb1`	public NAME:boolean = false;
`pgn_`	public get NAME () :number { ... }
`pso_`	public static NAME () :object { ... }

3. An underscore "_" at the start defines a private member.

Prefix	Snippet
`__`	private NAME () { ... }
`_a1`	private NAME:any = null;
`_b_`	private NAME () :boolean { ... };

Recommended Settings

It is recommended to set the snippet suggestions to top.

"editor.snippetSuggestions": "top",

Recommended Keyboard Shortcuts

Please have the following keyboard shortcuts always in mind, because these are fundamental to get the most out of it. Every tab stop is used only if necessary, because it prevents VS Code to open the IntelliSense menu automatically. So sometimes DownArrow or Cmd/Ctrl + Enter can have the same effect.

macOS

Tab - Jump to the next tab stop of the snippet.
DownArrow - Move the caret down one line.
Cmd + Enter - Insert line below, even if the caret is in the middle of a line.
Cmd + Shift + Enter - Insert line above, even if the caret is in the middle of a line.

Windows / Linux

Tab - Jump to the next tab stop of the snippet.
DownArrow - Move the caret down one line.
Ctrl + Enter - Insert line below, even if the caret is in the middle of a line.
Ctrl + Shift + Enter - Insert line above, even if the caret is in the middle of a line.

L13 JS Snippets

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