charAt() method : This method returns the character exist in a specified index of string.The index in a string always starts with 0.
Syntax of charAt() method :
string.charAt(index)
The index is required field. If no character is found or index is less then 0 then it will return NaN or empty string.
Example of charAt() method :
App.html
<!DOCTYPE html>
<html>
<body>
<p>Click the button to display the second character of the string "This is my home.".</p>
<button onclick="showSecondChar()">Show Second Char</button>
<p id="container"></p>
<script>
function showSecondChar() {
var str = "This is my home.";
var result = str.charAt(1);
document.getElementById("container").innerHTML = result;
}
</script>
</body>
</html>
**Output :** h
charCodeAt() method : This method is used to return the unicode value of a character at specified index of the string. In this case index also starts with 0.
Syntax of mehod :
string.charCodeAt(index)
The index is required field.
Example of charCodeAt() method :
App.html
<!DOCTYPE html>
<html>
<body>
<p>Click the button to display the unicode value of second character of the string "This is my home.".</p>
<button onclick="showSecondCharUnicode()">Click</button>
<p id="container"></p>
<script>
function showSecondCharUnicode() {
var str = "This is my home.";
var result = str.charCodeAt(1);
document.getElementById("container").innerHTML = result;
}
</script>
</body>
</html>
Output : 104
In the above example the result 104 is an unicode value of the character h.
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