What is charAt() Javascript String prototype?😱

Similar to all programming languages there is a data type called “string”. In this string data type, there is some prototype available. From all of this string prototype, the charAt() is one of the important. Then what does this prototype do?

carAt() is a method for string, which uses to get the individual character from a string which is in a form of a sentence. Let's take a look at an example code for better understanding.

let myString = “hello there, I’m a string”;
console.log(myString.charAt(0))
#output:
"h"

To get an individual character in a string you have to pass the index of the character in a string, as an argument of the method charAt(). In our case for the character “h”, the index of the “h” is 0 in the myString variable.

Return Values of charAt():

Agin if you want a character you need to pass the index of that character in a string, as an argument of the method charAt(). If you don’t pass any argument the charAt() method will set the argument as index 0 which will return the first character in a string. If you pass an index that is out of the range of the string’s last index in that case, it will return an empty string. Let’s look at some example:

var myString2 = 'hello world';
console.log("The character at index 0   is '" + anyString.charAt()   + "'");
// No index was provided, used 0 as default

console.log(myString2.charAt(0))
console.log(myString2.charAt(1))
console.log(myString2.charAt(2))
console.log(myString2.charAt(3))
console.log(myString2.charAt(5))
console.log(myString2.charAt(500))
#output:
"h"
"e"
"l"
"l"
"o"
""