Table 6-1. JavaScript statement syntax
break
|
break;
break labelname;
|
Exit from the innermost loop or switch statement
or from the statement named by label.
|
case
|
case expression:
|
Label a statement within a switch statement.
|
continue
|
continue;
continue labelname;
|
Restart the innermost loop or the loop named by
label.
|
default
|
default:
|
Label the default statement within a switch
statement.
|
do/while
|
do
statement
while (expression);
|
An alternative to the while loop.
|
empty
|
;
|
Do nothing.
|
for
|
for (initialize ; test ; increment)
statement
|
An easy-to-use loop.
|
for/in
|
for (variable in object)
statement
|
Loop through the properties of an object.
|
function
|
function funcname([arg1[..., argn]]) {
statements
}
|
Declare a function.
|
if/else
|
if (expression)
statement1
[else statement2]
|
Conditionally execute code.
|
label
|
identifier: statement
|
Give statement the name
identifier.
|
return
|
return [expression];
|
Return from a function or return the value of
expression from a function.
|
switch
|
switch (expression) {
statements
}
|
Multiway branch to statements labeled with case or
default: .
|
throw
|
throw expression;
|
Throw an exception.
|
try
|
try {
statements
}
catch (identifier) {
statements
}
finally {
statements
}
|
Catch an exception.
|
var
|
var name_1 [ = value_1]
[ ..., name_n [ = value_n]];
|
Declare and initialize variables.
|
while
|
while (expression)
statement
|
A basic loop construct.
|
with
|
with (object)
statement
|
Extend the scope chain. (Deprecated.)
|
