files/en-us/web/api/htmlinputelement/selectionend/index.md
{{ApiRef("HTML DOM")}}
The selectionEnd property of the {{domxref("HTMLInputElement")}} interface is a number that represents the end index of the selected text. That is, it represents the index of the character immediately following the selection. Likewise, when there is no selection, this returns the offset of the character immediately following the current text input cursor position.
[!NOTE] According to the WHATWG forms spec
selectionEndproperty applies only to inputs of types text, search, URL, tel, and password. In modern browsers, throws an exception while settingselectionEndproperty on the rest of input types. Additionally, this property returnsnullwhile accessingselectionEndproperty on non-text input elements.
If selectionEnd is less than selectionStart, then both are
treated as the value of selectionEnd.
A non-negative number.
<!-- using selectionEnd on non text input element -->
<label for="color">selectionStart property on type=color</label>
<input id="color" type="color" />
<!-- using selectionEnd on text input element -->
<fieldset>
<legend>selectionEnd property on type=text</legend>
<label for="pin">Input PIN</label>
<input type="text" id="pin" value="impossible PIN: 102-12-145" />
<button id="pin-btn" type="button">PIN correction</button>
</fieldset>
const colorEnd = document.getElementById("color");
const text = document.querySelector("#pin");
const pinBtn = document.querySelector("#pin-btn");
const validPinChecker = /^\d{3}-\d{2}-\d{3}/g;
const selectionEnd = text.value.length;
const selectedText = text.value.substring(text.selectionStart, selectionEnd);
pinBtn.addEventListener("click", () => {
const correctedText = selectedText.replace(validPinChecker, "");
text.value = correctedText;
});
// open browser console to verify output
console.log(colorEnd.selectionEnd); // Output : null
{{EmbedLiveSample("Examples")}}
{{Specifications}}
{{Compat}}