Something Like that:
Coercion
What is Coercion
converting a value from one type to another (this happens quite often in Javascript because it’s dynamically typed)
For that you need to create first html code.
HTML
<p>Value of a = <span id="demo"></span></p>
After that add this JS code.
JS
var a = 1 + '2';
document.getElementById("demo").innerHTML = a;
[codepen_embed height=”265″ theme_id=”0″ slug_hash=”qXaxev” default_tab=”result” user=”pradeepanvi”]See the Pen Coercion in javascript by Pradeep Kumar (@pradeepanvi) on CodePen.[/codepen_embed]
Now you can see
Value of a = 12
Why it is?
Because String and number will not equal. For that you need to convert string into number as well. For this click here.