A string identifying the build system action being performed.
The locations of any sparse SDKs that should be layered on top of the one specified by Base SDK (SDKROOT). If more than one SDK is listed, the first one has highest precedence. Every SDK specified in this setting should be a "sparse" SDK, for example, not an SDK for an entire macOS release.
| NSVisualEffectMaterial constants, and the undocumented materials they coorespond to in various modes: | |
| +----------------------+-------+----------+------+---------+ | |
| | MATERIAL # | LIGHT | LIGHT EM | DARK | DARK EM | | |
| +----------------------+-------+----------+------+---------+ | |
| | | | | | | | |
| | 0 - Appearance Based | 3 | 3 | 5 | 5 | | |
| | | | | | | | |
| | 1 - Light | 3 | 3 | 3 | 3 | | |
| | | | | | | | |
| | 2 - Dark | 4 | 4 | 4 | 4 | |
(also know as lies and/or alternative facts)
| function mySlowFunction(baseNumber) { | |
| console.time('mySlowFunction'); | |
| let result = 0; | |
| for (var i = Math.pow(baseNumber, 7); i >= 0; i--) { | |
| result += Math.atan(i) * Math.tan(i); | |
| }; | |
| console.timeEnd('mySlowFunction'); | |
| } | |
| mySlowFunction(8); // higher number => more iterations => slower |
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
| /* | |
| * This is an example provided by Facebook are for non-commercial testing and | |
| * evaluation purposes only. | |
| * | |
| * Facebook reserves all rights not expressly granted. | |
| * | |
| * 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 | |
| * FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| // | |
| // Tests if regular expression matches all valid ES6 import syntaxes. | |
| // | |
| // ES6 Language Specification Reference: | |
| // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-imports | |
| // | |
| const ES6_IMPORT_REGEX = /\bimport\s+(?:.+\s+from\s+)?[\'"]([^"\']+)["\']/g; | |
| const VALID_ES6_IMPORT_SYNTAXES = [ |
| /** | |
| * Fancy ID generator that creates 20-character string identifiers with the following properties: | |
| * | |
| * 1. They're based on timestamp so that they sort *after* any existing ids. | |
| * 2. They contain 72-bits of random data after the timestamp so that IDs won't collide with other clients' IDs. | |
| * 3. They sort *lexicographically* (so the timestamp is converted to characters that will sort properly). | |
| * 4. They're monotonically increasing. Even if you generate more than one in the same timestamp, the | |
| * latter ones will sort after the former ones. We do this by using the previous random bits | |
| * but "incrementing" them by 1 (only in the case of a timestamp collision). | |
| */ |
2015-01-29 Unofficial Relay FAQ
Compilation of questions and answers about Relay from React.js Conf.
Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.
Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).
This script scans your Dropbox (or any given folder) for folders stored in the ignore array and excludes them from syncing. Makes use of the official Dropbox CLI
I'm a beginner at bash, so all improvements are welcome!
#!/bin/bash
set -e
# SETTINGS