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charCodeAt()

JavaScript String charCodeAt()

The charCodeAt() the method returns the Unicode of the character at a specified index in a string:

The method returns a UTF-16 code (an integer between 0 and 65535).

---------

<!DOCTYPE html>

<html>

<body>

<h2>JavaScript String Methods</h2>

<p>The charCodeAt() method returns the unicode of the character at a given position in a string:</p>

let text = "HELLO WORLD";

document.getElementById("demo").innerHTML = text.charCodeAt(0);

</script>

</body>

</html>

------------------------------------------

Result:

JavaScript String Methods

The charCodeAt() method returns the Unicode of the character at a given position in a string:

Substring

JavaScript String substring()

substring() is similar to slice().

The difference is that start and end values less than 0 are treated as 0 in substring().

<!DOCTYPE html>

<html>

<body>

<h2>JavaScript String Methods</h2>

<p>The substring() method extract a part of a string and returns the extracted parts in a new string:</p>

let str = "Apple, Banana, Kiwi";

document.getElementById("demo").innerHTML = str.substring(7,13);

</script>

</body>

</html>

===============

Result:

JavaScript String Methods

The substring() method extracts a part of a string and returns the extracted parts in a new string:

Banana

JavaScript String Methods

String methods help you to work with strings.

String Methods and Properties

Primitive values, like "John Doe", cannot have properties or methods (because they are not objects).

But with JavaScript, methods, and properties are also available to primitive values, because JavaScript treats primitive values as objects when executing methods and properties.

JavaScript String Length

The length property returns the length of a string:

====================

<!DOCTYPE html>

<html>

<body>

<h2>JavaScript String Properties</h2>

<p>The length property returns the length of a string:</p>

let text = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

document.getElementById("demo").innerHTML = text.length;

</script>

</body>

</html>

====================

Result:

JavaScript String Properties

The length property returns the length of a string:

JavaScript String Methods

Java Script

--------------------------

<!DOCTYPE html>

<html>

<body>

<h2>JavaScript String Methods</h2>

<p>Using String.split():</p>

let text = "Hello";

const myArr = text.split("");

text = "";

for (let i = 0; i < myArr.length; i++) {

text += myArr[i] + "<br>"

}

document.getElementById("demo").innerHTML = text;

</script>

</body>

</html>

=========

Result:

JavaScript String Methods

Using String.split():

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charCodeAt()

JavaScript String charCodeAt()

JavaScript String Methods

Substring

JavaScript String Methods

JavaScript String Methods

JavaScript String Methods

JavaScript String Methods

JavaScript String Methods

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