CSSFontFeatureValuesMap: size property

Limited availability

The size read-only property of the CSSFontFeatureValuesMap interface returns a positive integer containing the size of the CSSFontFeatureValuesMap object.

Value

A positive integer.

Examples

Basic usage

The following example outputs an integer of the number of the declarations within the @swash feature block. This example is using @swash but also works with other feature value blocks.

CSS

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

JavaScript

// get the rules
const myRule = document.styleSheets[0].cssRules[0];
console.log(myRule.swash.size); // logs 2

Specifications

Browser compatibility