Code samples & Online tools
How to save array or object to localStorage in JavaScript. It will take a little trickery. This article explains how to do this with sample code. Table of ContentslocalStorage not store array / objectHow to save array to localStorageHow to… Read moreSave array / object to localStorage in JavaScript with sample codes
How to create password hash in Node.js. This article explains the way and code examples. The steps are as follows… Table of Contents1. Install bcrypt library2. Create password hash3. Compare hash and passwordNote. Hash isn’t same for same input1. Install… Read moreHow to create password hash in Node.js in 3 steps
How to get a cookie value by key / name in javaScript. This article explains the three methods with sample code. Table of Contents1. Get a cookie by split() and find()2. Get a cookie by using regex3. Using library like… Read more3 ways to get cookie value by key/name in JavaScript
How to use regex in express router in node.js with sample codes. This article explains how to do it with code examples. Table of ContentsUse regex in router pathEx1. Number only router pathEx2. Alphabet only router pathUse regex in router… Read moreUse regex in express router in node.js with sample codes
How to make the following in JavaScript… Fixed length random numbers, Fixed length random string, This article explains how to do it in JavaScript with example codes. Table of ContentsMake fixed length random numbersMake fixed length string [a-zA-Z]Generate fixed length… Read moreMake fixed length random number / string in JavaScript with sample codes
How to get hardware UUID on Windows. This article explains 3 ways to get it. Before trying command, open command prompt. Press Win + R and open run modal. Type “cmd” and press OK button to open the prompt. You… Read more3 ways to get windows hardware id with command examples
How to export / require custom module(s) in node.js This article explain the way and sample codes. Table of ContentsExport/Require just one moduleExport/Require multiple modulesExport/Require just one module How to require only one module. Sample code for exported module :… Read moreHow to require / export module(s) in node.js with sample codes
How to check if Android supports openGL ES2.0 or later. This article explains the way and example code in Kotlin. Table of ContentsWay to check GLES versionCheck if supports GLES2.0Restrict devices not support GLES2.0Way to check GLES version You can… Read moreCheck if Android supports openGL ES2.0 or later in Kotlin
How to save SurfaceView to Bitmap on Android. There are PixelCopy class on Android SDK. Provides a mechanisms to issue pixel copy requests to allow for copy operations from Surface to Bitmap Quotes : https://developer.android.com/reference/android/view/PixelCopy This class makes it easy to save a… Read moreHow to save SurfaceView to Bitmap on Android in Kotlin
2 ways to copy directory recursively in Kotlin. This article explains how to do it and gives code examples Table of Contents1. Use Files.copy() method2. Use File.copyRecursively() methodRelated articles…1. Use Files.copy() method First way is using Files.copy() method. Sample code… Read more2 ways to copy directory recursively in Kotlin