JavaScript – Convert String to Uppercase
To convert a string to uppercase in JavaScript, call toUpperCase() method on the string. The expression returns a new string with all the characters of the calling string transformed to uppercase.
Syntax
The syntax to call toUpperCase()
function on the string str
is
str.toUpperCase()
toUpperCase() returns a new string with the contents of the original string transformed to uppercase.
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Examples
In the following example, we take a string str
, convert this string to uppercase, and display both the original string, and uppercase transformed string in #output.
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Conclusion
In this JavaScript Tutorial, we learned how to transform a given string to uppercase in JavaScript, using toUpperCase() method, with examples.