JavaScript is a case-sensitive language . This means that language keywords, variables, function names, and any other identifiers must always be typed with a consistent capitalization of letters.
Read moreIs indexOf case sensitive C#?
IndexOf Method is by default case sensitive . But we can make it case insensitive if we use one of the overloads: IndexOf(String, StringComparison).
Read moreWhat is indexOf in JavaScript?
indexOf() The indexOf() method, given one argument: a substring to search for, searches the entire calling string, and returns the index of the first occurrence of the specified substring .18 Şub 2022
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