From da78a9e329e272dedb2400b79a3bdeebff387d47 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:42:17 -0500 Subject: initial commit --- files/ko/web/api/domtokenlist/contains/index.html | 117 ++++++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 files/ko/web/api/domtokenlist/contains/index.html (limited to 'files/ko/web/api/domtokenlist/contains/index.html') diff --git a/files/ko/web/api/domtokenlist/contains/index.html b/files/ko/web/api/domtokenlist/contains/index.html new file mode 100644 index 0000000000..5913cdf749 --- /dev/null +++ b/files/ko/web/api/domtokenlist/contains/index.html @@ -0,0 +1,117 @@ +--- +title: DOMTokenList.contains() +slug: Web/API/DOMTokenList/contains +translation_of: Web/API/DOMTokenList/contains +--- +

{{APIRef("DOM")}}

+ +

The contains() method of the {{domxref("DOMTokenList")}} interface returns a {{domxref("Boolean")}} — true if the underlying list contains the given token, otherwise false.

+ +

Syntax

+ +
tokenList.contains(token);
+ +

Parameters

+ +
+
token
+
A {{domxref("DOMString")}} representing the token you want to check for the existance of in the list.
+
+ +

Return value

+ +

A {{domxref("Boolean")}} — true if the underlying list contains the given token, otherwise false.

+ +

Examples

+ +

In the following example we retrieve the list of classes set on a {{htmlelement("span")}} element as a DOMTokenList using {{domxref("Element.classList")}}. We then test for the existance of "c" in the list, and write the result into the <span>'s {{domxref("Node.textContent")}}.

+ +

First, the HTML:

+ +
<span class="a b c"></span>
+ +

Now the JavaScript:

+ +
var span = document.querySelector("span");
+var classes = span.classList;
+var result = classes.contains("c");
+if(result) {
+  span.textContent = "The classList contains 'c'";
+} else {
+   span.textContent = "The classList does not contain 'c'";
+}
+ +

The output looks like this:

+ +

{{ EmbedLiveSample('Examples', '100%', 60) }}

+ +

Specifications

+ + + + + + + + + + + + + + +
SpecificationStatusComment
{{SpecName('DOM WHATWG','#dom-domtokenlist-contains','contains()')}}{{Spec2('DOM WHATWG')}}Initial definition
+ +

Browser compatibility

+ +
{{CompatibilityTable}}
+ +
+ + + + + + + + + + + + + + + + + + + +
FeatureChromeFirefox (Gecko)Internet ExplorerOperaSafari (WebKit)
Basic support{{CompatVersionUnknown}}{{CompatVersionUnknown}}10{{CompatVersionUnknown}}{{CompatVersionUnknown}}
+
+ +
+ + + + + + + + + + + + + + + + + + + + + +
FeatureAndroid WebviewChrome for AndroidFirefox Mobile (Gecko)IE PhoneOpera MobileSafari Mobile
Basic support{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatVersionUnknown}}{{CompatUnknown}}{{CompatVersionUnknown}}
+
+ +

 

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