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React recently introduced an experimental profiler API. This page gives instructions on how to use this API in a production release of your app.
Table of Contents
React DOM automatically supports profiling in development mode for v16.5+, but since profiling adds some small additional overhead it is opt-in for production mode. This gist explains how to opt-in.
First set out your build scripts In your package.json scripts and install the gh-pages npm module
"build": "gatsby build",
"test": "echo \"no test specified\" && exit 0",
"preDeploy": "gatsby build --prefix-paths",
"deploy": "npm run preDeploy && gh-pages -d public"
Connect Travis CI to your repo and in the repo settings add an enviroment var call GITHUB_TOKEN with the value of your github token from:
| 'use strict' | |
| import { Dimensions } from 'react-native' | |
| import React, {View, DeviceEventEmitter} from 'react-native' | |
| class SomeScene extends React.Component { | |
| constructor (props) { | |
| super(props) | |
| this.state = { | |
| visibleHeight: Dimensions.get('window').height | |
| } | |
| } |
| (function(){ | |
| 'use strict'; | |
| let cap = 100; // 100+ RTs or hearts produces max yellow bg color | |
| $('.tweet', '.stream-items').each((i, tweet) => { | |
| let all_nums = $(tweet) | |
| .find('.ProfileTweet-actionList .ProfileTweet-actionCount:visible') | |
| .map((j, elem) => Number(elem.textContent)).toArray(); | |
| setTimeout(function () {$('input:radio[id=q_708]').click();}, 50); | |
| setTimeout(function () {$('input:radio[id=q_722]').click();}, 50); | |
| setTimeout(function () {$('input:radio[id=q_742]').click();}, 50); | |
| setTimeout(function () {$('input:radio[id=q_746]').click();}, 50); | |
| setTimeout(function () {$('input:radio[id=q_750]').click();}, 50); | |
| setTimeout(function () {$('input:radio[id=q_752]').click();}, 50); | |
| setTimeout(function () {$('input:radio[id=q_759]').click();}, 50); | |
| setTimeout(function () {$('input:radio[id=q_765]').click();}, 50); | |
| setTimeout(function () {$('input:radio[id=q_771]').click();}, 50); | |
| setTimeout(function () {$('input:radio[id=q_777]').click();}, 50); |
| <!DOCTYPE html> | |
| <head> | |
| <script> | |
| var db; | |
| // until we won't need this prefix mess | |
| var indexedDB = window.indexedDB || window.webkitIndexedDB | |
| || window.mozIndexedDB || window.msIndexedDB; | |
| var IDBTransaction = window.IDBTransaction || | |
| window.webkitIDBTransaction; |
| //this is a tiny helper method for making JSON Http Requests | |
| //if you want a more comprehensive solution, write it yourself | |
| // | |
| //the callback function will receive two arguments: the response, | |
| // parsed as JSON, and the xhr object used inside jhr, with an added | |
| // responseJSON property (you can probably guess what it is) | |
| // | |
| //this always sends a POST request, and the data is always serialized to JSON | |
| // | |
| //returns the xhr object used |
