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