Jul 10, 2025 · The lastIndexOf () method of String values searches this string and returns the index of the last occurrence of the specified substring. It takes an optional starting position and …

The lastIndexOf() method returns the index (position) of the last occurrence of a specified value in a string. The lastIndexOf() method searches the string from the end to the beginning.

The following example demonstrates three overloads of the LastIndexOf method that find the last occurrence of a string within another string using different values of the StringComparison …

Nov 19, 2024 · The String lastIndexOf () method returns the position of the last occurrence of a given character or substring in a String. The Index starts from 0, and if the given substring is …

The lastIndexOf() returns the index of the last occurrence of a substring in a string, or -1 if the string does not contain the substring. The lastIndexOf() always performs a case-sensitive search.

Jan 30, 2023 · The string.lastIndexOf () method looks into a string value to find the last event of it and returns the 0-based index position of the string if it founds otherwise returns -1.

The lastIndexOf() method locates the index of the last occurrence of substr. As the indexing of a string starts from 0, str.lastIndexOf(substr) returns the value 7.

Jul 16, 2024 · The lastIndexOf() method in JavaScript is used to search for the last occurrence of a specified substring within a string. It returns the index of the last occurrence of the specified …

The lastIndexOf() method of String values searches this string and returns the index of the last occurrence of the specified substring. It takes an optional starting position and returns the last …

The lastIndexOf() method returns the position of the last occurrence of specified character (s) in a string. Tip: Use the indexOf method to return the position of the first occurrence of specified …