The read-only startOffset property of the AbstractRange interface returns the offset into the start node of the range's start position.
AbstractRange: startOffset property
Value
An integer value indicating the number of characters into the Node indicated by startContainer at which the first character of the range is located.
Example
js
let startOffset = range.startOffset;
Specifications
| Specification |
|---|
| DOM Standard # ref-for-dom-range-startoffset① |
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 | |
startOffset |
90 | 9018–79 | 69 | No | 76 | 14.1 | 90 | 90 | 79 | 64 | 14.5 | 15.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/AbstractRange/startOffset