Web Reference: Description The length property returns the length of a string. The length property of an empty string is 0. Jul 10, 2025 · Description This property returns the number of code units in the string. JavaScript uses UTF-16 encoding, where each Unicode character may be encoded as one or two code units, so it's possible for the value returned by length to not match the actual number of Unicode characters in the string. In this tutorial, you will learn about the JavaScript String length property with the help of examples. The JavaScript String length property returns the number of characters in a string.
YouTube Excerpt: 00:00:00 intro 00:00:28 .charAt() 00:01:34 .indexOf() 00:02:03 .lastIndexOf() 00:02:15 .
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