Richard's JavaScript Tutorials

Updated 07/18/14

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Concatenation of strings

In JavaScript strings are enclosed in "quotation marks" and  you can concatenate two strings with a plus sign a plus sign. Here is a simple example of some JavaScript that demonstrates the concatenation of strings


<body> <script type="text/javascript">
<!-- My code starts here!!!

document.write("This is how you " + "concatenate strings")

//-->
</script> </body>
the above script gives you the following sentence.

This is how you concatenate strings


You can do the same thing with numbers, so to make the number 55 you can write a code like this

<body> <script type="text/javascript">
<!--
document.write("5 " + "5")
//-->
</script>

(Note this example demonstrates a concatenation of a string data type)

You can also concatenate different data types, like numbers.
For Example, here is the code
(the parseInt command converts strings to numbers)

<script type="text/javascript">
document.write(parseInt("5") + parseInt("5"))
</script>

that gives you

Now try substituting my code and try your own concatenation JavaScript.

 

This site was last updated 07/08/14