Case Analysis of JavaScript Grammar

This article mainly explains "JavaScript Grammar case Analysis". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "JavaScript Grammar case Analysis".

JavaScript is a programming language. Grammatical rules define the language structure.

JavaScript syntax

JavaScript is a scripting language.

It is a lightweight but powerful programming language.

JavaScript literal quantity

In programming languages, a general fixed value is called a literal quantity, such as 3.14.

The literal quantity of a number (Number) can be an integer or a decimal or a scientific count (e).

3.14

1001

123e5

String (String) literals can be in single or double quotation marks:

"JohnDoe"

'JohnDoe'

The literal amount of the expression is used to calculate:

Five and six

5-10

Array (Array) literally defines an array:

[40,100,1,5,25,10]

Object (Object) literally defines an object:

{firstName: "John", lastName: "Doe", age:50,eyeColor: "blue"}

Function (Function) literally defines a function:

FunctionmyFunction (aformab) {returna*b;}

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