Recent questions tagged hoisting

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hoisting - Why does JavaScript hoist variables?

Why does JavaScript hoist variables? What was the rationale of the designers when they decided to implement ... relevant links to documentation and/or records. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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hoisting - 'Hoisted' JavaScript Variables

I do not fully understand why the following displays "hoisted" towards the end. var x = 'set'; var y = ... "hoisted" y(); Any pointers would be appreciated. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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hoisting - Do variable declaration with let and const in JavaScript work differently in block scope and global scope?

Here are two examples: console.log(x); let x = 4; throws Reference Error x is not defined; { console. ... -declaration-with-let-and-const-in-javascript-work-differently-in-blo...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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hoisting - can arrow function gets hoisted in a class? (javascript)

class App { constructor() { this.canvas = document.createElement('canvas'); document.body.appendChild(this.canvas); this.ctx = this. ... window.onload = () => { new App(); };...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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