Section 101th, JavaScript Process Control statements

JavaScript Process Control Statements

Learning Essentials:

1. Definition of statements

2.if statements

3.switch statements

4.do...while statements

5.while statements

6.for statements

7.for...in statements

8.break and Continue statements

9.with statements

ECMA-262 sets up a set of process control statements. A statement defines the primary syntax in ECMAScript, which typically consists of one or more keywords to accomplish a given task. such as: Judgment, circulation, exit, etc.

A. definition of a statement

In ECMAScript, all the code is composed of statements. Statements indicate the process, qualification, and convention in the execution, which can be either a single line statement or a compound statement enclosed by a pair of curly braces "{}", in which the composite statement can be treated as a single-line statement in the syntax description.

Types of statements

Type	Sub-type	Grammar
Statement statement	Variable declaration statements	var box = 100;
	Label declaration statement
An expression statement	Variable assignment statements	box = 100;
	Function Call statement	Box ();
	Property Assignment Statements	Box.property = 100;
	Method Invocation Statement	Box.method ();
Branch statements	Conditional branching statements	if () {} else {}
	Multiple branching statements	Switch () {Case n: ...};

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Section 101th, JavaScript Process Control statements