Javascript (JS) Tutorial - convert string lower, upper case conversion

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String Function - case conversion

Tutorials

Javascript

Topic

how to convert a lower case alphabet to upper case and vice versa in javascript?

Explanation

Object: String

Method or Function: toLowerCase(), toUpperCase()

Description: These methods are used to cover a string or alphabet from lower case to upper case or vice versa. e.g: "and" to "AND".

Converting to Upper Case:

Example Code:
<script language=javascript>
var ss = " testing case conversion method ";
var result = ss.toUpperCase();
document.write(result);
</script>

Result:

Converting to Lower Case:

Example Code:
<script language=javascript>
var ss = " TESTING LOWERCASE CONVERT FUNCTION ";
var result = ss.toLowerCase();
document.write(result);
</script>

Result:

Explanation:
In the above examples,

toUpperCase() method converts any string to "UPPER" case letters.

toLowerCase() method converts any string to "lower" case letters.

A Note

Javascript (JS) is one of the most used languages in the world. Some times spelled as Java Script. Hope you enjoy this tutorial. Do send your feedback or suggestions on this javascript or java script tutorial. This is a copyright content.