First, prefaceTonight in the eyes of the people to see the front-end technical experts-He Shijun on the JavaScript sentence should be added semicolon? "The answer, let me once again see Daniel's style, really admire extremely." But pure admiration
Inserted only before, after one or more line breaks, and at the end of program inputThis means that you can only omit semicolons in a row, a block of code, and where a program ends.Which means you can write code like this.function Square (x) {
JavaScript Each statement ends with a semicolon, but because JavaScript has a semicolon automatic insertion rule, all the different programmers have different habits, some with a semicolon, and some without a semicolon, then whether to add a
Objective
Trust in C # and Java everyone knows that the semicolon is used as a punctuation (eos,end of statement), and must be semicolon, otherwise the compilation will not pass. But JavaScript has an ASI mechanism that allows us to omit semicolons.
Text: The semicolon insertion mechanism in JavaScriptInserted only before, after one or more line breaks, and at the end of program inputThis means that you can only omit semicolons in a row, a block of code, and where a program ends.Which means you
Inserted only before, after one or more line breaks, and at the end of program inputThis means that you can only omit semicolons in a row, a block of code, and where a program ends.Which means you can write code like this.function Square (x) {
The semicolon of JavaScript represents the terminator of the statement, but because JavaScript has a semicolon-inserted rule, it is a very confusing thing, and in general, a newline produces a semicolon, but the reality is not , which means that
A detailed description of the semicolon Insertion Mechanism in JavaScript
This article mainly introduces the semicolon Insertion Mechanism in JavaScript. This article describes the semicolon Insertion Mechanism in various cases in JavaScript. For
Inserted only before, after one or more lines, and at the end of program input
That means you can only omit a semicolon in one line, a block of code, and the end of a program.
Which means you can write the following code
Copy Code code as
JS magic Hall: ASI (automatic semicolon insertion mechanism) and Front semicolonI. Preface I will see the frontend Technical Expert of the People's Network in zhihu tonight-He Shijun-should I add points to JavaScript statements? The answer, let me
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