October 30, 2016--javascript syntax

Source: Internet
Author: User

1 , basic data type : String, Decimal, Integer, DateTime, Boolean, and so on.

2, variable: "var" definition variable: var A; all variable definitions are defined with Var, var is a generic mutable type.

3, type conversion: converted to integers: parseint (); Converted to decimal: parsefloat ();

4. Operators:

Math Operator: +-*/% + +-;

Relational operators: = = =! > >= < <=;

Logical operator:&& | | !;

Other operators: + = = *=/=%=?:

5, statements: divided into sequential, branching and looping statements.

Branch: if () {}else{} switch () {case:break;}

Loop: for (;;) {}

6. Array:   var array = new Array (); Value: array[0];

7. Function: define functions: Function function name (parameter) {function Body} return value can be var type or return value

Pop-up window:

Alert ("alert"); Cancel Fork
Confirm ("confirm"); OK cancel fork
Prompt ("Prompt", "you enter AH"); input OK cancel fork

October 30, 2016--javascript syntax

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