The indexOf() method returns the index number where the target string is first found or -1 if the target is not found. Like equals(), the indexOf() method is case-sensitive , so uppercase and lowercase chars are considered to be different.
Read moreHow do you make an Array not case-sensitive?
To do a case insensitive check if an array contains a string in JavaScript:
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The equalsIgnoreCase() method compares two strings, ignoring lower case and upper case differences. This method returns true if the strings are equal, and false if not. Tip: Use the compareToIgnoreCase() method to compare two strings lexicographically, ignoring case differences.
Read moreHow do I make JavaScript not case-sensitive?
To do case insensitive search, you can use regular expressions and the String#match() function , or you can convert both the string and substring to lower case using the String#toLowerCase() function.
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
Read moreIs indexOf case-sensitive?
The indexOf() method returns the index number where the target string is first found or -1 if the target is not found. Like equals(), the indexOf() method is case-sensitive , so uppercase and lowercase chars are considered to be different.
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