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CSSKeyframesRule.findRule()

The findRule() method of the CSSKeyframeRule interface finds the CSSKeyFrameRule that matches the specified keyframe selector.

Syntax

findRule(select)

Parameters

select

A string which contains the keyframe selector of the rule to be found, which must be:

  • a comma-separated list of percentage values between 0% and 100%;
  • or, the keywords from or to

Note that the number and order of the values in the specified keyframe selector must match those of the targeted keyframe rule(s). White-space is disregarded.

Return value

A CSSKeyframeRule which is the last matching rule. If no rules are found, nothing is returned.

Examples

The CSS includes a keyframes at-rule. This will be the first CSSRule returned by document.styleSheets[0].cssRules. myRules[0] returns a CSSKeyframesRule object. Calling findRule("to") returns a CSSKeyframeRule representing the second rule.

@keyframes slidein {
  from {
    transform: translateX(0%);
  }

  to {
    transform: translateX(100%);
  }
}
let myRules = document.styleSheets[0].cssRules;
let keyframes = myRules[0]; // a CSSKeyframesRule
console.log(keyframes.findRule('to'));  // a CSSKeyframeRule object

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
findRule
1
12
5
10
12
4
1
18
5
12
3.2
1.0

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https://developer.mozilla.org/en-US/docs/Web/API/CSSKeyframesRule/findRule