Name
RegExp.test() — test whether a string matches a pattern
Synopsis
regexp
.
test
(
string
)
Arguments
string
The string to be tested.
Returns
true
if
string
contains text that matches
regexp
; false
otherwise.
Throws
TypeError
If this method is invoked on an object that is not a RegExp.
Description
test()
tests
string
to see if it contains text that
matches regexp
. If so, it returns
true
; otherwise, it returns
false
. Calling the test()
method of a RegExp
r
and passing it the string
s
is equivalent to the following
expression:
(
r
.
exec
(
s
)
!=
null
)
Example
var
pattern
=
/java/i
;
pattern
.
test
(
"JavaScript"
);
// Returns true
pattern
.
test
(
"ECMAScript"
);
// Returns false
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