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Original link: https://dsx2016.com/?p=692WeChat public number: big brother 2016 ECMAScript ECMA ScriptyesECMA-262The name of the standardized scripting language. althoughJavaScriptandJScriptAndECMAScriptCompatible, but contains more thanECMA ScriptFunction. The following table is divided into four modules: ECMAScript 1st Edition (ECMA-262)Co ...

Recently ECMAScript2019, the latest proposal is completed: tc39 Finished Proposals , I also sort out the official introduction here. If you have any questions, you can check the official introduction.~ Besides, I've sorted it out before. ES6/ES7/ES8/ES9 series You can watch it together. 1. Optional catch binding 1.1 INTRODUCTION In the latest ...

In the ECMAScript specification, all functions contain these two methods, and the use of the two methods is basically the same. They are used to change the scope of the function, that is, to change the direction of this in the function body. The difference is that the second parameter of the call method can receive any parameter, separated by c ...

Data type judgment in Javascript is actually a very basic problem in JavaScript, but it is a very common problem both in daily programming and in interviews. When many people are asked how to judge a variable data type, they can probably answer several methods. However, the differences, advantages and disadvantages, limitations and principles o ...

I believe you are familiar with deconstruction assignment.Yuan Tai Introduction to ECMAScript 6There are seven kinds of applications, the most used is json data processing. json data processing let jsonData = { id: 42, status: "OK", data: [867, 5309] }; let { id, status, data: number } = jsonData; console.log(id, status, number); // 42, ...

When we do projects involving transaction evaluation, TV evaluation, novel evaluation and so on, most of us will choose to display the selection of evaluation stars according to the score of customer evaluation. Let me share the evaluation stars component I encapsulated below. 1. Packaging star Compon ...

Many OO languages support two kinds of inheritance: interface inheritance and implementation inheritance. ECMAScript only supports the implementation of inheritance, and the implementation of inheritance mainly depends on prototype chain implementation. Prototype chain Fundamental idea: Use prototypes to let one reference type inherit the att ...

JSON(JavaScript Object Notation, JS Object Simple Spectrum) is a lightweight data exchange format. It is based on a subset of ECMAScript (the js specification developed by the European Computer Association), and uses a text format completely independent of programming languages to store and represent ...

JavaScript Written Test Section Click on the public number "Programmer Interviewer" to get the latest update of the document, and you can get the Front End Interview Manual and the most standard resume template. Implementing a debounce function Principle of Anti-jitter Function: Callback is executed after an event is triggered in n se ...

In computer science, Abstract Syntax Tree (AST) is an abstract representation of the grammatical structure of source code. It represents the grammatical structure of programming language in the form of tree, and each node in the tree represents a structure in the source code. The reason why grammar is "abstract" is that the grammar he ...