Awesome
turbo-javascript
A collection of commands and ES6-ready snippets for optimizing Javascript and Typescript development productivity.
Commands
Use the following keymaps to speed up your development. You can quickly terminate lines with semicolons or manipulate blocks of code with ease.
End Line CTRL-;
Terminates the current line with a semicolon.
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 or semicolon, followed with a new line. A comma is inserted when the cursor is inside an object literal, otherwise a semicolon is inserted.
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.
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
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}
co⇥
const statement
const ${1:name}
co=⇥
const assignment
const ${1:name} = ${2:value}
Flow Control
if⇥
if statement
if (${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
for (let ${1:i} = 0, ${2:len} = ${3:iterable}.length; ${1:i} < ${2:len}; ${1:i}++) {
${0}
}
fi⇥
for in loop
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 {
}
sw⇥
switch case
switch (${1:expr}) {
case ${2:value}:
return $0;
default:
return;
}
Functions
f⇥
anonymous function
function (${1:arguments}) {${0}}
fn⇥
named function
function ${1:name}(${2: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}) => {
\t${0}
}
gf⇥
generator function (ES6)
function* (${1:arguments}) {
${0}
}
gfn⇥
named generator function (ES6)
function* ${1:name}(${1:arguments}) {
${0}
}
Iterables
seq⇥
sequence of 0..n
[...Array(${1:length}).keys()]${0}
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}
});
Objects and classes
c⇥
class (ES6)
class ${1:name} {
constructor(${2:arguments}) {
${0}
}
}
cex⇥
child class (ES6)
class ${1:name} extends ${2:base} {
constructor(${2:arguments}) {
super(${2:arguments});
${0}
}
}
ctor
class constructor (ES6)
constructor(${1:arguments}) {
super(${1:arguments});${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}) {
${0}
};
a⇥
Object assign
Object.assign(${1:dest}, ${2:source})
ac⇥
Object assign copy (shallow clone)
Object.assign({}, ${1:original}, ${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}
});
rc⇥
return complex value (such as JSX components)
return (
${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}
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}';
BDD testing (Mocha, Jasmine, etc.)
desc⇥
describe
describe('${1:description}', function () {
${0}
});
cont⇥
context
context('${1:description}', function () {
${0}
});
it⇥
and its⇥
synchronous "it"
it('${1:description}', function () {
${0}
});
ita⇥
asynchronous "it"
it('${1:description}', function (done) {
${0}
});
bf⇥
before test suite
before(function () {
${0}
});
bfe⇥
before each test
beforeEach(function () {
${0}
});
aft⇥
after test suite
after(function () {
${0}
});
afe⇥
after each test
afterEach(function () {
${0}
});
Console
cl⇥
console.log
console.log(${0});
ce⇥
console.error
console.error(${0});
cw⇥
console.warn
console.warn(${0});
Timers
st⇥
setTimeout
setTimeout(() => {
${0}
}, ${1:delay});
si⇥
setInterval
setInterval(() => {
${0}
}, ${1:delay});
sim⇥
setImmediate
setImmediate(() => {
${0}
});
DOM specifics
ae⇥
addEventListener
${1:document}.addEventListener('${2:event}', ${3:ev} => {
${0}
});
gi⇥
getElementById
${1:document}.getElementById('${2:id}')
gc⇥
getElementsByClassName
Array.from(${1:document}.getElementsByClassName('${2:class}'))
Array.from
polyfill required for ES5
gt⇥
getElementsByTagName
Array.from(${1:document}.getElementsByTagName('${2:tag}'))
Array.from
polyfill required for ES5
qs⇥
querySelector
${1:document}.querySelector('${2:selector}')
qsa⇥
querySelectorAll
Array.from(${1:document}.querySelectorAll('${2:selector}'))
Array.from
polyfill required for ES5
Node.js specifics
cb⇥
Node.js style callback
function (err${1:, value}) {${0}}
re⇥
require a 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';
License
The MIT License (MIT)
Copyright (c) 2014, Nicolas Mercier
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 NONINFRINGEMENT. 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.