[02:06 PM] acemarke: @Steven : a couple other thoughts on the whole NODE_ENV thing. First, per my comments, it really is a Node concept. It's a system environment variable that Node exposes to your application, and apparently the Express web server library popularized using its value to determine whether to do optimizations or not
[02:08 PM] acemarke: Second, because of its use within the Node ecosystem, web-focused libraries also started using it to determine whether to they were being run in a "development" environment vs a "production" environment, with corresponding optimizations. For example, React uses that as the equivalent of a C #ifdef to act as conditional checking for debug logging and perf tracking. If process.env.NODE_ENV is set to "production", all those if clauses will evaluate to false.
Third, in conjunction with a tool like UglifyJS that does minification and removal of dead code blocks, a clause that is surrounded with if(process.env.NODE_ENV !== "development")
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| import axios from 'axios'; | |
| class Service { | |
| constructor() { | |
| let service = axios.create({ | |
| headers: {csrf: 'token'} | |
| }); | |
| service.interceptors.response.use(this.handleSuccess, this.handleError); | |
| this.service = service; | |
| } |
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| /* file:///Users/henryhuman/Documents/04_Business/Bootstrap%20Creative/GitHub%20repositories/bootstrap-classes-list/bootstrap4.5.0.html */ | |
| .accordion | |
| .active | |
| .alert | |
| .alert-danger | |
| .alert-dark | |
| .alert-dismissible | |
| .alert-heading | |
| .alert-info |
A complete list of RxJS 5 operators with easy to understand explanations and runnable examples.
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| 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])) { |
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| // Implementation in ES6 | |
| function pagination(c, m) { | |
| var current = c, | |
| last = m, | |
| delta = 2, | |
| left = current - delta, | |
| right = current + delta + 1, | |
| range = [], | |
| rangeWithDots = [], | |
| l; |
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| /* | |
| Before using make sure you have: | |
| npm install --save-dev gulp gulp-minify-css gulp-concat gulp-uglify gulp-autoprefixer gulp-sass | |
| Make sure to change the directory names in the default watch function to the CSS/SCSS/SASS directories you are using so it reloads | |
| */ | |
| var gulp = require('gulp'), | |
| minifyCSS = require('gulp-minify-css'), | |
| concat = require('gulp-concat') |
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| { | |
| "env": { | |
| "browser": true, | |
| "node": true, | |
| "es6": true | |
| }, | |
| "plugins": ["react"], | |
| "ecmaFeatures": { |