You can directly add string and number in JavaScript, no need for a special method or typecasting. Just use a + (Adds two operands) OR += operator to Concatenate integer variable to a string variable.
+= is Add AND assignment operator, It adds the right operand to the left operand and assigns the result to the left operand
Example of JavaScript concatenate string and int
<!DOCTYPE html>
<html>
<body>
<script language="JavaScript">
var str = "Name";
var num = 7;
str += num;
alert(str);
</script>
</body>
</html>
Here is a code of how to Concatenating numbers and String as a string in JavaScript.
<!DOCTYPE html>
<html>
<body>
<script language="JavaScript">
var str = "Name";
var num = 7;
var joint = str + num;
alert(joint);
</script>
</body>
</html>
Output:
Do comment if you have any suggestions and questions on this topic.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version