It assigns values from the right side operand to the left side operand. For example, C = A + B will assign the value of A + B into C.
Example
You can try to run the following code to work with Assignment Operator −
<html> <body> <script> var a = 33; var b = 10; document.write("Value of a => (a = b) => "); result =(a = b); document.write(result); </script> </body> </html>