JavaScript : String Operators
String Concatenation
When working with JavaScript strings sometimes you need to join two or more strings together in to a single string. Joining multiple strings together is known as concatenation.
The concatenation operator
The concatenation operator (+) concatenates two or more string values together and return another string which is the union of the two operand strings.
The shorthand assignment operator += can also be used to concatenate strings.
Example :
The following web document demonstrates the use of concatenation operator (+) and shorthand assignment operator +=.
HTML Code
<!doctype html> <head> <meta charset="utf-8"> <title>JavaScript string operator example.</title> <meta name="description" content="This document contains an example of JavaScript string operator"/> </head> <body> <script src="javascript-string-operator-example1.js"></script> </body>
</html>
JS Code
var newParagraph = document.createElement("p");
var newText = document.createTextNode("'google' + '.' + ' com=" + 'google' + '.' + ' com');
newParagraph.appendChild(newText);
document.body.appendChild(newParagraph);
var string1= 'google';
var newParagraph1 = document.createElement("p");
var newText1 = document.createTextNode('string1='+string1);
newParagraph1.appendChild(newText1);
document.body.appendChild(newParagraph1);
string1 +='.com';
var newParagraph1 = document.createElement("p");
var newText1 = document.createTextNode('string1='+string1);
newParagraph1.appendChild(newText1);
document.body.appendChild(newParagraph1);
View the example in the browser
