Baseline Widely available
The getTargetRanges() method of the InputEvent interface returns an array of StaticRange objects that will be affected by a change to the DOM if the input event is not canceled.
This allows web apps to override text edit behavior before the browser modifies the DOM tree, and provides more control over input events to improve performance.
Depending on the value of inputType and the current editing host, the expected return value of this method varies:
getTargetRanges() "historyUndo" or "historyRedo" Any empty Array All remaining contenteditable an Array of StaticRange objects associated with event All remaining input or textarea an empty Array Syntax Parameters
None.
Return valueAn array of StaticRange objects.
The following function returns true if beforeinput, and thus getTargetRanges, is supported.
function isBeforeInputEventAvailable() {
return (
window.InputEvent &&
typeof InputEvent.prototype.getTargetRanges === "function"
);
}
The following example selects a contenteditable element and utilizes the beforeinput event to log the result of getTargetRanges().
const editableElem = document.querySelector('[contenteditable="true"]');
editableElem.addEventListener("beforeinput", (e) => {
const targetRanges = e.getTargetRanges();
console.log(targetRanges);
});
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