Jan 8, 2024 · The main difference is that substr() accepts a length parameter, while substring() accepts start and end indices. JavaScript str.substr() Function The str.substr() function returns the specified number of characters from the specified index from the given string.

Sep 19, 2010 · substr() allows you to specify the maximum length to return; substring() allows you to specify the indices and the second argument is NOT inclusive; There are some additional subtleties between substr() and substring() such as the handling of …

The substring() method extracts characters, between two indices (positions), from a string, and returns the substring. The substring() method extracts characters from start to end (exclusive). The substring() method does not change the original string.

The substr() method extracts a part of a string. The substr() method begins at a specified position, and returns a specified number of characters. The substr() method does not change the original string. To extract characters from the end of the string, use a negative start position.

Mar 26, 2025 · substring() extracts characters from indexStart up to but not including indexEnd. In particular: If indexEnd is omitted or undefined, substring() extracts characters to the end of the string. If indexStart is equal to indexEnd, substring() returns an empty string.

Feb 11, 2010 · substr() extracts parts of a string, beginning at the character at the specified position, and returns the specified number of characters. substring() extracts parts of a string and returns the extracted parts in a new string. Note #2: slice()==substring()

Mar 22, 2020 · Getting a substring from a string is one of the most common operations in JavaScript. In this article, you’re going to learn how to get a substring by using 3 different built-in methods. But first, let me explain briefly what a substring is.

Jun 20, 2019 · There are 3 ways to get a substring of a string in JavaScript. In this tutorial, you will learn the difference between `String#substring ()`, `String#substr ()`, and `String#slice ()`

Sep 13, 2023 · substr() is typically better when dealing with lengths, especially from the end of strings, while substring() is more intuitive when working with known indexes. Although, note that substr() is technically deprecated, so substring() should be preferred.

There are two String manipulation functions in JavaScript, namely, substr () and substring (), that are used to get a substring from a String. However, there are slight differences between subst () and substring () methods.