JavaScript Interview Question:

What is eval() in JavaScript?

Submitted by: Administrator

The eval() method is incredibly powerful allowing us to execute snippets of code during execution in JavaScript.

<script type="text/javascript">
var USA_Texas_Austin = "521,289";
document.write("Population is "+eval("USA_"+"Texas_"+"Austin"));
</script>

This produces
Population is 521,289
Submitted by: Administrator