Awesome
Standard JavaScript Snippets for Atom
A collection of ES6 standardjs code style snippets for faster JavaScript development in Atom Editor.
Yes!, no semicolons:
- Are Semicolons Necessary in JavaScript?
- An Open Letter to JavaScript Leaders Regarding Semicolons
- JavaScript Semicolon Insertion - Everything You Need to Know
Installation
apm install standardjs-snippets
Snippets
Snippets are optimized to be short and easy to remember. Some snippets are "chainable" and render differently when preceded by a "."
For example, .fe
renders a chain-friendly version of the "forEach" snippet, while fe
renders a full code block.
- declarations
- flow control
- functions
- iterables
- objects and classes
- returning values
- types
- promises
- ES6 modules
- testing
- console
- timers
- DOM
- Node.js
- miscellaneous
Declarations
v⇥
var statement
var ${1:name}
v=⇥
var assignment
var ${1:name} = ${2:value}
l⇥
let statement
let ${1:name}
l=⇥
let assignment
let ${1:name} = ${2:value}
lif=⇥
let declaration and if statement
let ${1}
if (${0}) {
${1} = ${2}
}
ly⇥
let yielded assignment
let ${1:name} = yield ${2:value}
c⇥
const statement
const ${1:name}
c=⇥
const assignment
const ${1:name} = ${2:value}
cy⇥
const yielded assignment
const ${1:name} = yield ${2:value}
Flow Control
if⇥
if statement
if (${1:condition}) {
${0}
}
el⇥
else statement
else {
${0}
}
ife⇥
else statement
if (${1:condition}) {
${0}
} else {
}
ei⇥
else if statement
else if (${1:condition}) {
${0}
}
fl⇥
for loop (ES6)
for (let ${1:i} = 0, ${2:len} = ${3:iterable}.length ${1:i} < ${2:len}; ${1:i}++) {
${0}
}
fi⇥
for in loop (ES6)
for (let ${1:key} in ${2:source}) {
if (${2:source}.hasOwnProperty(${1:key})) {
${0}
}
}
fo⇥
for of loop (ES6)
for (let ${1:key} of ${2:source}) {
${0}
}
wl⇥
while loop
while (${1:condition}) {
${0}
}
tc⇥
try/catch
try {
${0}
} catch (${1:err}) {
}
tf⇥
try/finally
try {
${0}
} finally {
}
tcf⇥
try/catch/finally
try {
${0}
} catch (${1:err}) {
} finally {
}
Functions
f⇥
anonymous function
function (${1:arguments}) { ${0} }
fn⇥
named function
function ${1:name} (${2:arguments}) {
${0}
}
asf⇥
async function
async function (${1:arguments}) {
${0}
}
iife⇥
immediately-invoked function expression (IIFE)
;(function (${1:arguments}) {
${0}
})(${2})
fa⇥
function apply
${1:fn}.apply(${2:this}, ${3:arguments})
fc⇥
function call
${1:fn}.call(${2:this}, ${3:arguments})
fb⇥
function bind
${1:fn}.bind(${2:this}, ${3:arguments})
af⇥
arrow function (ES6)
(${1:arguments}) => ${2:statement}
afb⇥
arrow function with body (ES6)
(${1:arguments}) => {
${0}
}
gf⇥
generator function (ES6)
function* (${1:arguments}) {
${0}
}
gfn⇥
named generator function (ES6)
function* ${1:name}(${1:arguments}) {
${0}
}
sf⇥
switch function based on object literals
const ${1:name} = (${2:switching}) => ({
${3:case}: ${4:value},
}[${2:switching}] || ${5:default value}
)
Iterables
fe⇥
forEach loop (chainable)
${1:iterable}.forEach((${2:item}) => {
${0}
})
map⇥
map function (chainable)
${1:iterable}.map((${2:item}) => {
${0}
})
reduce⇥
reduce function (chainable)
${1:iterable}.reduce((${2:previous}, ${3:current}) => {
${0}
}${4:, initial})
filter⇥
filter function (chainable)
${1:iterable}.filter((${2:item}) => {
${0}
})
find⇥
ES6 find function (chainable)
${1:iterable}.find((${2:item}) => {
${0}
})
every⇥
every function (chainable)
${1:iterable}.every((${2:item}) => {
${0}
})
some⇥
some function (chainable)
${1:iterable}.some((${2:item}) => {
${0}
})
Objects and classes
cs⇥
class (ES6)
class ${1:name} {
constructor (${2:arguments}) {
${0}
}
}
csx⇥
child class (ES6)
class ${1:name} extends ${2:base} {
constructor (${2:arguments}) {
super(${2:arguments})
${0}
}
}
:⇥
key/value pair
Javascript:
${1:key}: ${2:'value'}
JSON:
"${1:key}": ${2:"value"}
m⇥
method (ES6 syntax)
${1:method} (${2:arguments}) {
${0}
}
get⇥
getter (ES6 syntax)
get ${1:property}() {
${0}
}
set⇥
setter (ES6 syntax)
set ${1:property}(${2:value}) {
${0}
}
gs⇥
getter and setter (ES6 syntax)
get ${1:property}() {
${0}
}
set ${1:property}(${2:value}) {
}
proto⇥
prototype method (chainable)
${1:Class}.prototype.${2:methodName} = function (${3:arguments}) {
${0}
}
ok
Object.keys
Object.keys(${1:obj})
oa
Object.assign
Object.assign(${1:dest}, ${2:source})
Returning values
r⇥
return
return ${0}
rth⇥
return this
return this
rn⇥
return null
return null
rt⇥
return true
return true
rf⇥
return false
return false
r0⇥
return 0
return 0
r-1⇥
return -1
return -1
rp⇥
return Promise (ES6)
return new Promise((resolve, reject) => {
${0}
})
Types
S⇥
String
N⇥
Number
O⇥
Object
A⇥
Array
D⇥
Date
Rx⇥
RegExp
tof⇥
typeof comparison
typeof ${1:source} === '${2:undefined}'
iof⇥
instanceof comparison
${1:source} instanceof ${2:Object}
ia⇥
isArray
Array.isArray(${1:source})
Promises
p⇥
new Promise (ES6)
new Promise((resolve, reject) => {
${0}
})
then⇥
Promise.then (chainable)
${1:promise}.then((${2:value}) => {
${0}
})
catch⇥
Promise.catch (chainable)
${1:promise}.catch((${2:err}) => {
${0}
})
ES6 modules
ex⇥
module export
export ${1:member}
exd⇥
module default export
export default ${1:member}
im⇥
module import
import ${1:*} from '${2:module}'
ima⇥
module import as
import ${1:*} as ${2:name} from '${3:module}'
imd⇥
module import destructuring
import {$1} from '${2:module}'
BDD testing (Mocha, Jasmine, etc.)
desc⇥
describe
describe('${1:description}', () => {
${0}
})
its⇥
synchronous "it"
it('${1:description}', () => {
${0}
})
ita⇥
asynchronous "it"
it('${1:description}', (done) => {
${0}
})
bf⇥
before test suite
before(() => {
${0}
})
bfe⇥
before each test
beforeEach(() => {
${0}
})
aft⇥
after test suite
after(() => {
${0}
})
afe⇥
after each test
afterEach(() => {
${0}
})
Timers
st⇥
setTimeout
setTimeout(() => {
${0}
}, ${1:delay})
si⇥
setInterval
setInterval(() => {
${0}
}, ${1:delay})
sim⇥
setInterval
setImmediate(() => {
${0}
})
DOM
ae⇥
addEventListener
${1:document}.addEventListener('${2:event}', ${3:ev} => {
${0}
})
rel⇥
removeEventListener
${1:document}.removeEventListener('${2:event}', ${3:listener})
gi⇥
getElementById
${1:document}.getElementById('${2:id}')
gc⇥
getElementsByClassName
Array.from(${1:document}.getElementsByClassName('${2:class}'))
gt⇥
getElementsByTagName
Array.from(${1:document}.getElementsByTagName('${2:tag}'))
qs⇥
querySelector
${1:document}.querySelector('${2:selector}')
qsa⇥
querySelectorAll
Array.from(${1:document}.querySelectorAll('${2:selector}'))
cdf⇥
createDocumentFragment
${1:document}.createDocumentFragment(${2:elem});
cel⇥
createElement
${1:document}.createElement(${2:elem});
ac⇥
appendChild
${1:document}.appendChild(${2:elem});
rc⇥
removeChild
${1:document}.removeChild(${2:elem});
cla⇥
classList.add
${1:document}.classList.add('${2:class}');
ct⇥
classList.toggle
${1:document}.classList.toggle('${2:class}');
cr⇥
classList.remove
${1:document}.classList.remove('${2:class}');
ga⇥
getAttribute
${1:document}.getAttribute('${2:attr}');
sa⇥
setAttribute
${1:document}.setAttribute('${2:attr}', ${3:value});
ra⇥
removeAttribute
${1:document}.removeAttribute('${2:attr}');
Node.js
cb⇥
Node.js style callback
function (err, ${1:value}) {
if (err) throw err
t${0}
}
re⇥
require a module
require('${1:module}')
cre⇥
require and assign a module
const ${1:module} = require('${1:module}')
em⇥
export member
exports.${1:name} = ${2:value}
me⇥
module.exports
module.exports = ${1:name}
on⇥
attach an event handler (chainable)
${1:emitter}.on('${2:event}', (${3:arguments}) => {
${0}
})
xm⇥
Express middleware
function (req, res${1:, next}) {
${0}
}
xerr⇥
Express error handler
function (err, req, res, next) {
${0}
}
Miscellaneous
us⇥
use strict
'use strict'
js⇥
JSON Stringify
JSON.stringify($0)
jp⇥
JSON Parse
JSON.parse($0)
a⇥
await
await ${0}
Console
cl⇥
console.log
console.log(${0})
ce⇥
console.error
console.error(${0})
cw⇥
console.warn
console.warn(${0})
Commands
Use the following keymaps to speed up your development. You can quickly terminate lines with colons or manipulate blocks of code with ease.
End Line with a comma CTRL-,
Terminates the current line with a comma (great for object literals).
End New Line CTRL-ENTER
Terminates the current line with a colon followed with a new line. A comma is inserted when the cursor is inside an object literal.
Easy Blocks CTRL-B
Creates a statement block { ... }
with the selected text placed inside and properly indented. If the selection is already wrapped with a block, the block is removed and its content is unindented.
Contributing
More than happy to accept external contributions to the project in the form of feedback, bug reports and even better pull requests. Please read the contributing guidelines
Related Repositories
Alternatives to Standard Style
- Semistandard - standard, with semicolons
- XO - JavaScript happiness style, by Sindre Sorhus
Author Info
Software engineer and consultant. I help companies develop software products and make technical decisions. I’m a proponent of devops, continuous delivery, lightweight agile methodologies and open source technology stacks.
I occasionally blog at gaboesquivel.com and you can find me on twitter as @gaboesquivel
License
The MIT License (MIT)
Copyright (c) 2015, Gabo Esquivel
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.