Полезная информация

JavaScript: The Definitive Guide

Previous Chapter 5
Statements
Next
 

5.14 Summary of JavaScript Statements

This chapter has introduced each of the statements of the JavaScript language. Table 5.1 summarizes these statements, their syntax, and their purpose.

Table 5.1: JavaScript Statement Syntax
Statement Syntax Purpose
break

break;

Exit from the innermost loop.

continue

continue;

Jump to top of containing loop.

empty

;

Do nothing.

for

for (initialize ; test ; increment)
    statement

Easy-to-use loop.

for/in

for (variable in object)
    statement

Loop through properties of object.

function

function funcname([arg1 [..., argn]]) {
    statements
}

Declare a function.

if/else

if (expression)
    statement1
[ else
    statement2 ]

Conditionally execute code.

return

return expression;

Return a value from a function.

var

var name_1 [ = value_1 ]
    [ ..., name_n [ = value_n]] ;

Declare and initialize variables.

while

while (expression)
    statement

Basic loop construct.

with

with (object)
    statement

Specify the current name space.


Previous Home Next
The Empty Statement Book Index Functions

HTML: The Definitive Guide CGI Programming JavaScript: The Definitive Guide Programming Perl WebMaster in a Nutshell