Xah Web Dev Blog Archive 2017-10

Updates of JS tutorial to ES2015, status.

in the past 2 months, the following have been updated to ES2015

• JS DOM: Intro to Event-Based Programing
• JS: Random Integer Range Function 📜
• JS: Round/Truncate Number
• JS: Tagged Template String
• JS: Object (basics)
• JS: Array.prototype.forEach
• JS: Deep Copy Array or Object 📜
• JS: Array.prototype.slice (extract)
• JS: SVG Clock
• JS: Convert Array-Like Object to Array
• JS: Array.prototype.sort
• JS: Array.prototype.some
• JS: Array.prototype.every
• JS: Array.prototype.reduce
• JS: Array.prototype.reduceRight
• JS: Array.from
• JS: Array.prototype.toString
• JS: Test Array Equality
• JS: Sparse Array
• JS: Array.prototype.indexOf
• JS: Array.prototype.lastIndexOf
• JS: Array.prototype.join (to string)
• JS: Array.prototype.concat
• JS: Array Constructor
• JS: Array.prototype.flat
• JS: Create Array
• JS: Random Array Element, Randomize Array 📜
• Node.js Tutorial
• JS: Array (overview)
• JS: Array (basics)
• JS: Array.prototype.map
• JS: Range Function for Array 📜
• JS: Array.prototype.splice (remove and add at index)
• JS: the Set Object (basics)
• JS: Set (class)
• JS: Set.prototype
• JS: Set.prototype.add
• JS: Set.prototype.clear
• JS: Set.prototype.delete
• JS: Set.prototype.has
• JS DOM: Set Attribute
• JS: Function Call, Apply, Bind
• JS: Function.prototype.call ❌
• JS: Reflect.apply (λ)
• JS: Function.prototype.apply ❌
• JS: Get Max/Min Value of Array
• JS: Reflect.getOwnPropertyDescriptor
• JS: Reflect.isExtensible
• JS: Object.isExtensible
• JS: Reflect.preventExtensions
• JS: Object.preventExtensions

there are still about 100 pages need to be updated. Mostly remove use of var

then, am going to write a JS ES2015 tutorial for beginner. That is, a ES2015 version of JavaScript Basics

put in a few bucks in my patreon. https://www.patreon.com/xahlee Thank you.

following pages updated to ES2015

1. Object.keys
2. Object.getOwnPropertyNames
3. Object.getOwnPropertySymbols
4. Reflect.ownKeys
5. Date Tutorial
6. Date.now
7. List Properties

CSS: Text Shadow (updated)

CSS: Round Corners (updated)

revamped many pages at Visual CSS

JavaScript Sucks (2017)

the spam trend of past 3 years, is people who email you nicely and elaborately, citing your site and ask you to link to them.

Note, you get that only if your site is popular.

See also: Web Spam, Scam, SEO. Index

and there's a scum job site plorepbqref (rot13 to see name), somehow they can always tell if you clicked their email spam read in gmail.

what's the technique to see if your spam email has been opened? (no click link) I thought Google gmail blocked all tracking gifs and indirected stuff.

JavaScript sort, is fragile, and most complex, convoluted (2017)