Definition:
When you use this function in a program, it searches for a specific character or word in a string and returns its position (index number).
If the value is not found, it returns -1.
If the value is found, it returns the index of the first occurrence (starting from 0).
Syntax:
stringVariable.indexOf(searchValue)Explanation:
Whereas,
string → A type of data that stores text.
variable → Used to store a value.
indexOf(searchValue) → Used to find the position of a character or word in a string. Returns -1 if not foundExample:
let name = "edutation.com";
console.log(name.indexOf("d")); // 1
console.log(name.indexOf("x")); // -1Output: