| function mapValues(obj, fn) { | |
| return Object.keys(obj).reduce((result, key) => { | |
| result[key] = fn(obj[key], key); | |
| return result; | |
| }, {}); | |
| } | |
| function pick(obj, fn) { | |
| return Object.keys(obj).reduce((result, key) => { | |
| if (fn(obj[key])) { |
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
| // Promise.all is good for executing many promises at once | |
| Promise.all([ | |
| promise1, | |
| promise2 | |
| ]); | |
| // Promise.resolve is good for wrapping synchronous code | |
| Promise.resolve().then(function () { | |
| if (somethingIsNotRight()) { | |
| throw new Error("I will be rejected asynchronously!"); |
| #!/usr/bin/env python | |
| """Edit a file in the host nvim instance.""" | |
| import os | |
| import sys | |
| from neovim import attach | |
| args = sys.argv[1:] | |
| if not args: | |
| print "Usage: {} <filename> ...".format(sys.argv[0]) |
NOTE: this is out of date - refer to moby/moby#9694
Here is a preview build of two new features we’re working on concurrently: container grouping (docker groups) and stack composition (docker up). Together, they will eventually form a complete replacement for Fig.
| This diff is a modified version of a diff written by Arnis Lapsa. | |
| [ The original can be found here: https://gist.github.com/ArnisL/6156593 ] | |
| This diff adds support to tmux for 24-bit color CSI SRG sequences. This | |
| allows terminal based programs that take advantage of it (e.g., vim or | |
| emacs with https://gist.github.com/choppsv1/73d51cedd3e8ec72e1c1 patch) | |
| to display 16 million colors while running in tmux. | |
| The primary change I made was to support ":" as a delimeter as well |
| /** @jsx React.DOM */ | |
| var Graphic = React.createClass({ | |
| componentDidMount: function() { | |
| var context = this.getDOMNode().getContext('2d'); | |
| this.paint(context); | |
| }, | |
| componentDidUpdate: function() { |
