truncateString javascript Code Snippet in 2025
stringbeginner
Last Updated: 17 December 2025
Truncates a string up to a specified length.
- Determine if
String.prototype.lengthis greater thannum. - Return the string truncated to the desired length, with
'...'appended to the end or the original string.
const truncateString = (str, num) => str.length > num ? str.slice(0, num > 3 ? num - 3 : num) + '...' : str;
truncateString('boomerang', 7); // 'boom...'javascript snippet similar to truncateString For You in December 2025
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