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