Web Reference: Jan 16, 2026 ยท One common use case for substring () is when you need to extract specific substrings from a known index range. For example, you might extract the first name or last name from a full name string. You can use substring () to extract parts of a URL, such as the protocol, domain, or path. Aug 22, 2023 ยท By the end of this video, you'll possess a toolkit of top finding tricks in JavaScript - skills that not only enhance your coding abilities but also prepare you to excel in JavaScript... 4 days ago ยท Despite being straightforward in concept, substring() has several behavioral quirks -- particularly around negative indices and argument swapping -- that trip up even experienced developers.
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