Xah Web Dev Blog

• JavaScript: Destructuring Assignment

• Font Size Survey 2023
• Font Size Problem: CSS Size vs Visual Size

• CSS Variable
• HTML: the Root Element
• CSS: Computed Style

• 2023-11-15 brave browser now has a ai chatbot called Leo.

updates

• JavaScript: Array Tutorial
• JavaScript: Array.prototype.slice
• JavaScript: Array.prototype.splice
• JavaScript: Array.prototype.flatMap
• JavaScript: Array.prototype.copyWithin

• JavaScript: Object Tutorial
• JavaScript: let Declaration

• CSS: Selector Syntax

• JavaScript: Xah Functions

• JavaScript: Timing/Benchmark JS Code

• JavaScript: Array.prototype.fill
• JavaScript: Array Constructor
• JavaScript: Sparse Array

• JavaScript: Array Tutorial
• JavaScript: for-of Loop
• JavaScript: Reflect.construct

• JavaScript: Array.prototype.flat (Flatten Array)
• JavaScript: Array.prototype.flatMap

• JavaScript: Convert Decimal/Hexadecimal
• 🆕 JavaScript: Convert Decimal/Binary

• JavaScript: Number.prototype.toString

updates

• JavaScript: Xah Functions
• JavaScript: Swap Object Key/Value 🚀
• JavaScript: Semicolon Rules

minor updates. added tip icon and warning icon.

• JavaScript Basics
• JavaScript: Branch Control: if then else, switch
• JavaScript: Object Literal Expression
• JavaScript: let Declaration
• JavaScript: “in” Operator
• JavaScript: for-in Loop
• JavaScript: “delete” Operator
• JavaScript: var Declaration
• JavaScript: var Declaration Order (Name Hoisting)
• JavaScript: Symbol Tutorial

• JavaScript: Function's “arguments” Object
• JavaScript: Function Declaration vs Function Expression
• JavaScript: Strict Mode

• JavaScript: Array.prototype.sort
• JavaScript: Test Array Equality
• JavaScript: Test Equality
• JavaScript: Double Equal Operator
• JavaScript: Difference Between window.isNaN vs Number.isNaN

• JavaScript: typeof Operator
• JavaScript: What is Constructor
• JavaScript: instanceof Operator
• JavaScript: Difference Between typeof, instanceof, constructor property

JavaScript: Object.isExtensible
• JavaScript: Object.preventExtensions
• JavaScript: Object.isExtensible
• JavaScript: Object.seal
• JavaScript: Prevent Adding Property
• JavaScript: Object.getOwnPropertyDescriptor
• JavaScript: Function.prototype.apply vs Function.prototype.call

• JavaScript: Property Key "prototype"
• JavaScript: Get/Set Prototype
• JavaScript: Object.prototype.__proto__
• JavaScript: Prototype and Inheritance
• JavaScript: Add Method to Prototype

• JavaScript: RegExp.prototype.exec
• JavaScript: String.prototype.match
• JavaScript: String.prototype.matchAll
• JavaScript: RegExp Flag

• JavaScript: Date Tutorial
• JavaScript: Date.parse

• JavaScript: Load Order, defer, async, module
• JavaScript: Element Attribute Methods
• JavaScript: Node value

• HTML: Nested List
• HTML: Figure Tag

• CSS: Length Units
• CSS: Reset, Default Values
• CSS: Percentage Value

• reviving this blog.
• because i find it convenient to put webdev related stuff here, e.g. JavaScript CSS HTML.

Stopping this blog. This web dev blog began in 2010-01. [see Xah Web Dev Blog 2010-01] It was split from Xah Programing Blog. Because i was dying of hunger and wanted to get peanuts from Google Ads. Now, no more. Read web dev stuff at my main programing blog.

• CSS: Dark Theme

Ok guys. Remove cache, now xah site support dark theme! Still going thru testing stage. So if u find problems, tell it. Thank you!