106 lines
1.6 KiB
Markdown
106 lines
1.6 KiB
Markdown
---
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title: Jsdoc
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category: JavaScript
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layout: 2017/sheet
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updated: 2017-10-29
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weight: -1
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---
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### Functions
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```js
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/**
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* This is a function.
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*
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* @param {string} n - A string param
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* @return {string} A good string
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*
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* @example
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*
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* foo('hello')
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*/
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function foo(n) { return n }
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```
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See: <http://usejsdoc.org/index.html>
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### Types
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| Type | Description |
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| --- | --- |
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| `@param {string=} n` | Optional |
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| `@param {string} [n]` | Optional |
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| `@param {(string|number)} n` | Multiple types |
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| `@param {*} n` | Any type |
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| `@param {...string} n` | Repeatable arguments |
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| `@param {string} [n="hi"]` | Optional with default |
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| `@param {string[]} n` | Array of strings |
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See: <http://usejsdoc.org/tags-type.html>
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### Variables
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```js
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/**
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* @type {number}
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*/
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var FOO = 1
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```
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```js
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/**
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* @const {number}
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*/
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const FOO = 1
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```
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### Typedef
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```js
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/**
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* A song
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* @typedef {Object} Song
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* @property {string} title - The title
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* @property {string} artist - The artist
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* @property {number} year - The year
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*/
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```
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```js
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/**
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* Plays a song
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* @param {Song} song - The {@link Song} to be played
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*/
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function play (song) {
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}
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```
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See: <http://usejsdoc.org/tags-typedef.html>
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### Other keywords
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```js
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/**
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* @throws {FooException}
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* @private
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* @deprecated
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* @see
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*
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* @function
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* @class
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*/
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```
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### Renaming
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```js
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/*
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* @alias Foo.bar
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* @name Foo.bar
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*/
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```
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Prefer `alias` over `name`. See: <http://usejsdoc.org/tags-alias.html>
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