Limited availability
The CSSMathValue.operator read-only property of the CSSMathValue interface indicates the operator that the current subtype represents. For example, if the current CSSMathValue subtype is CSSMathSum, this property will return the string "sum".
We create an element with a width determined using a calc() function, then console.log() the operator.
<div>My width has a <code>calc()</code> function</div>
We assign a width with a calculation
div {
width: calc(50% - 0.5vw);
}
We add the JavaScript
const styleMap = document.querySelector("div").computedStyleMap();
console.log(styleMap.get("width")); // CSSMathSum {values: CSSNumericArray, operator: "sum"}
console.log(styleMap.get("width").values); // CSSNumericArray {0: CSSUnitValue, 1: CSSMathNegate, length: 2}
console.log(styleMap.get("width").operator); // 'sum'
console.log(styleMap.get("width").values[1].operator); // 'negate'
The CSSMathValue.operator returns sum for the equation and negate for the operator on the second value.
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4