JavaScript eval() Function
 JavaScript Functions
Definition and Usage
The eval() function evaluates and/or executes a string of JavaScript code.
First, eval() determines if the argument is a valid string, then eval()
parses the string looking for JavaScript code. If it finds any JavaScript code,
it will be executed.
Syntax
| Parameter |
Description |
| string |
Optional. The string to be evaluated/executed |
Example
Example
Evaluate/Execute JavaScript code/expressions:
<script type="text/javascript">
eval("x=10;y=20;document.write(x*y)");
document.write("<br />" + eval("2+2"));
document.write("<br />" + eval(x+17));
</script>
|
The output of the code above will be:
Try it yourself »
|
JavaScript Functions
Whether you're new to XML or already an advanced user,
the user-friendly views and powerful entry helpers,
wizards, and debuggers in XMLSpy are designed to meet your XML
and Web development needs from start to finish.
New features in Version 2010!
- XML editor
- Graphical XML Schema / DTD editors
- XSLT 1.0/2.0 editor, debugger, profiler
- XQuery editor, debugger, profiler
- XBRL validator, taxonomy editor, taxonomy wizard
- Support for Office Open XML (OOXML)
- Graphical WSDL 1.1/2.0 editor & SOAP debugger
- JSON editing & conversion
- Java, C#, C++ code generation
- And much more!
Download a free trial today!
|
|
|
|
