Summary of JavaScript Statements
This chapter introduced each of the JavaScript language’s statements. Table 5-1 summarizes them, listing the syntax and purpose of each.
Table 5-1. JavaScript statement syntax
Statement | Syntax | Purpose |
---|---|---|
break | break
[ | Exit from the innermost loop or |
case | case
| Label a statement within a |
continue | continue
[ | Begin next iteration of the innermost loop or the named loop |
debugger | debugger; | Debugger breakpoint |
default | default: | Label the default statement within a |
do/while | do
| An alternative to the |
empty | ; | Do nothing |
for | for( | An easy-to-use loop |
for/in | for
( | Enumerate the properties of
|
function | function
| Declare a function named
|
if/else | if
( | Execute |
label |
| Give |
return | return
[ | Return a value from a function |
switch | switch
( | Multiway branch to |
throw | throw
| Throw an exception |
try | | Handle exceptions |
use strict | "use
strict"; | Apply strict mode restrictions to script or function |
var | var
| Declare and initialize one or more variables |
while | while
( | A basic loop construct |
with | with
( |
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