Conditional comments are conditional statements interpreted by Microsoft Internet Explorer versions 5 through 9 in HTML source code.
<!--[if IE]>
<!--[if IE 5]><![endif]-->
<!--[if IE 6]><![endif]-->
<!--[if IE 7]><![endif]-->
<!--[if IE 8]><![endif]-->
<!--[if IE 9]><![endif]-->
<![endif]-->
Reference: Wikipedia
Starting with Internet Explorer 4, there exists a similar proprietary mechanism for adding conditional comments within JScript, known as conditional compilation.
<script type="text/jscript">
/*@cc_on
@if (@_jscript_version == 11)
document.write("You are using IE11 with an older document mode");
@elif (@_jscript_version == 10)
document.write("You are using IE10");
@elif (@_jscript_version == 9)
document.write("You are using IE9");
@elif (@_jscript_version == 5.8)
document.write("You are using IE8");
@elif (@_jscript_version == 5.7)
document.write("You are using IE" + (!window.XMLHttpRequest ? 6 : 7));
@elif (@_jscript_version == 5.6)
document.write("You are using IE6");
@elif (@_jscript_version == 5.5)
document.write("You are using IE5.5");
@elif (@_jscript_version < 5.5)
document.write("You are using a version older than IE5.5");
@else
document.write("You are using an unknown version of IE");
@end
@*/
</script>
Reference: Wikipedia
You can test your browser here.
| Browser | Result | Notes |
|---|---|---|
| Internet Explorer 1 | N/A | Untested |
| Internet Explorer 2 | Fail | Internet Explorer 2 doesn't support Conditional Comments. |
| Internet Explorer 3 | Fail | Internet Explorer 3 doesn't support Conditional Comments. |
| Internet Explorer 4 | Fail | Internet Explorer 4 doesn't support Conditional Comments. |
| Internet Explorer 5 | Pass | |
| Internet Explorer 5.5 | Pass | |
| Internet Explorer 6 | Pass | |
| Internet Explorer 7 | Pass | |
| Internet Explorer 8 | Pass | |
| Internet Explorer 9 | Pass | |
| Internet Explorer 10 | Fail | Internet Explorer doesn't support Conditional Comments except in Compatibility Mode where it appears as Internet Explorer 7. |
| Internet Explorer 11 | Fail | Internet Explorer 11 doesn't support Conditional Formatting except in Compatibility Mode when it appears as Internet Explorer 7. |
| Browser | Result | Notes |
|---|---|---|
| Internet Explorer 1 | N/A | Untested |
| Internet Explorer 2 | Fail | Internet Explorer 2 doesn't support JScript. |
| Internet Explorer 3 | Fail | Internet Explorer 3 doesn't support Conditional Compilation. |
| Internet Explorer 4 | Pass | JScript version identified as 3.01. |
| Internet Explorer 5 | Pass | JScript version identified as 5.1. |
| Internet Explorer 5.5 | Pass | |
| Internet Explorer 6 | Pass | |
| Internet Explorer 7 | Pass | |
| Internet Explorer 8 | Pass | |
| Internet Explorer 9 | Pass | |
| Internet Explorer 10 | Pass | JScript version is identified as 10 in Standard Mode and Compatibility Mode. |
| Internet Explorer 11 | Fail | Conditional Composition only works in Compatibility Mode where the JScript version is identified as 11. |
| Browser Name | Full Version | Platform | |
|---|---|---|---|
| Internet Explorer 1 | N/A | N/A | N/A |
| Internet Explorer 2 | Microsoft Internet Explorer for Windows NT Version 2.0 (Build 1381) | Microsoft Windows NT Workstation 4.0 with Microsoft Internet ExplorerMicrosoft Windows NT, 4.00.1381, IE 4.0.4.72.3612.1713 | |
| Internet Explorer 3 | Microsoft Internet Explorer Version 3.02 (4.70.1300) | Microsoft Windows NT Workstation 4.0 with Microsoft Internet ExplorerMicrosoft Windows NT, 4.00.1381, IE 4.0.4.72.3612.1713 | |
| Internet Explorer 4 | Microsoft Internet Explorer 4.0Version: 4.72.3612.1713, Update Versions: SP2;3283 | Microsoft Windows NT Workstation 4.0 with Microsoft Internet ExplorerMicrosoft Windows NT, 4.00.1381, IE 4.0.4.72.3612.1713 | |
| Internet Explorer 5 | Microsoft Internet Explorer 5Version: 5.00.3314.2101, Update Versions: SP2 | Microsoft Windows NT Workstation 4.0 with Microsoft Internet ExplorerMicrosoft Windows NT, 4.00.1381, IE 5.5.00.3314.2101 | |
| Internet Explorer 5.5 | Microsoft Internet ExplorerVersion: 5.50.4807.2300, Update Versions: SP2 | Microsoft Windows NT Workstation 4.0 with Microsoft Internet ExplorerMicrosoft Windows NT, 4.00.1381, IE 5.5.50.4807.2300 | |
| Internet Explorer 6 | Microsoft Internet ExplorerVersion: 6.0.2600.0000 | Microsoft Windows NT Workstation 4.0 with Microsoft Internet ExplorerMicrosoft Windows NT, 4.00.1381, IE 5.6.0.2600.0000 | |
| Internet Explorer 7 | Windows Internet Explorer 7Version: 7.0.5730.13 | Microsoft Windows XP ProfessionalVersion 2002, Service Pack 3 | |
| Internet Explorer 8 | Windows Internet Explorer 8Version: 8.0.7601.17514 | Windows 7 UltimateService Pack 1 | |
| Internet Explorer 9 | Windows Internet Explorer 9Version: 9.0.8112.16421, Update Versions: 9.0.41 (KB3078071) | Windows 7 UltimateService Pack 1 | |
| Internet Explorer 10 | Internet Explorer 10Version 10.0.9200.17457, Update Versions: 10.0.30 | Windows 7 UltimateService Pack 1 | |
| Internet Explorer 11 | Internet Explorer 11Version: 11.0.9600.17843, Update Versions: 11.0.20 (KB3058515) | Windows 7 UltimateService Pack 1 |