String Function - case conversion

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:


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



Result:






Converting to Lower Case:

Example:


<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.


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