JavaScript - ES6 - Variables Types - Var Vs Let - Const - Freezing Objects - Hoisting Explained

Web Reference: Novice JavaScript developers need to know that the "not not" operator is using implicitly the original loose comparison method instead of the exact or operators and also the hidden cast operation that is happening behind the scenes and I show it in the example I provide. Related to Is there a "null coalescing" operator in JavaScript? - JavaScript now has a ?? operator which I see in use more frequently. Previously most JavaScript code used ||. let userAge = Dec 11, 2008 · I'm using JSLint to go through JavaScript, and it's returning many suggestions to replace == (two equals signs) with === (three equals signs) when doing things like comparing idSele_UNVEHtype.value.

YouTube Excerpt: Hi! In this video I am explaining let and const variables types from ECMAScript 6. We are investigating differences between var and let. I am also explaining var type hoisting mechanism. Later in the video we are taking a closer look on const variable type. At the end I am showing how to freeze reference types so it is not possible to modify them. Hope you like it! Follow //CodefForgeYT on: FB: https://www.facebook.com/codeforgeyt/ Twitter: https://twitter.com/codeforgeyt GitHub: https://github.com/codeforgeyt Instagram: http://instagram.com/codeforgeyt

Hi! In this video I am explaining let and const variables types from ECMAScript 6. We are investigating differences between var and let. I am also...

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