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CSSFontFeatureValuesMap: delete() method

files/en-us/web/api/cssfontfeaturevaluesmap/delete/index.md

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{{APIRef("CSSOM")}}{{SeeCompatTable}}

The delete() method of the {{domxref("CSSFontFeatureValuesMap")}} interface removes the CSS declaration with the given property in the CSSFontFeatureValuesMap.

Syntax

js-nolint
delete(property)

Parameters

  • property
    • : An identifier indicating the declaration to remove.

Return value

None ({{jsxref("undefined")}}).

Examples

Basic usage

The following example deletes the first declaration within the @swash feature block. This example is using @swash but also works with other feature value blocks.

CSS

css
@font-feature-values "MonteCarlo" {
  @swash {
    swishy: 1;
    swashy: 2;
  }
}

JavaScript

js
// get the rules
const myRule = document.styleSheets[0].cssRules[0];
console.log(myRule.swash.has("swishy")); // logs true
myRule.swash.delete("swishy");
console.log(myRule.swash.has("swishy")); // logs false

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also