How to transform text from one case to another using javascript

Friends,

This post will describe converting text from one case to another using javascript. In general programming, we need to convert a text to the following cases –

  • Lower Case
  • Upper Case
  • Title Case

We will see the conversion one by one below –

To convert a text into lowercase using Javascript

function toLowerCase(str) {
   return str.toLowerCase();
}

You can use this by calling –

alert toLowerCase("HELLO WORLD");

To convert a text into uppercase using Javascript

function toUpperCase(str) {
   return str.toUpperCase();
}

You can use this by calling –

alert toUpperCase("hello world");

To convert a text into Titlecase using Javascript

function toTitleCase(str) {
   return str.replace(/\w\S*/g, function (txt) { return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase(); });
}

You can use this by calling –

alert toTitleCase("hello world");

Hope you all enjoyed reading this post. Let me know your thoughts and views via comments. :)

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  • Joseph

    Great post, thanks.