Use JQuery to dynamically update day’s field when year/month changes

JQuery Code: //Adjust date picker days in month. $('select[name=birth_year],select[name=birth_month]').change(function(){ var year = $('select[name=bi ... ...

Update SQL Table using CASE and WHEN

Given a table salary, such as the one below, that has m=male and f=female values. Swap all f and m values (i.e., change all f values to m and vice ver ... ...

Optimize runtime of inserting 10000 items into mysql

un-optimized version: $wpdb; $t1 = microtime(TRUE); for($i = 0; $i < 10000; $i++){ $wpdb->query(" INSERT INTO test (value) VALUES ('xxx') "); } ... ...

Babel Issue (async/await): regeneratorRuntime is not defined

Babel 7 Users I had some trouble getting around this since most information was for prior babel versions. For Babel 7, install these two dependencies: ... ...

React SSR with Isomorphic-css-loader

Index.js: import App from './app'; import React from 'react'; import ReactDOM from 'react-dom'; import { renderToString } from "react-dom/server& ... ...

React Ref

Ref is just a way to manipulate the DOM just in a similar manner as jQuery. Simple example: import React from "react"; import ReactDOM from ... ...

React Context API

Simple example: import React from "react"; import ReactDOM from "react-dom"; const MyContext = React.createContext(); const MyProv ... ...

PHP Array Goodies: current(), next(), reset(), key()

Sample Code: $arr = array( 'a' => 'apple', 'b' => 'banana', 'c' => 'coconut', 'd' => 'doggy' ); $name = current($arr); echo $name.""; $name = next($ar ... ...

A dump yet clever way to debug wp-cron

A new way: //Get log from cron jobs: $output = json_encode($YOUR_OBEJCT); $ch = curl_init(); curl_setopt($ch, CURLOPT_URL,"https://www.369usa.com/msg/ ... ...

Some Notes about Docker + PHPUnit

This is kinda a confusing subject to learn for me, especially when I am not very familiar with docker yet, nor with PHPUnit. Here is my note as I go a ... ...