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In javascript, is an empty string always false as a boolean?
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Yes. All false, 0, empty strings '' and "", NaN, undefined, and null are always evaluated as false; everything else is true.
And in your example, b is false after evaluation. (I think you mistakenly wrote true)
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Get current batchfile directory
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System read-only variable %CD% keeps the path of the caller of the batch, not the batch file location.
You can get the name of the batch script itself as typed by the user with %0 (e.g. scripts\mybatch.bat). Parameter extensions can be applied to this so %~dp0 will return the D...
Django FileField with upload_to determined at runtime
...eed to use the filename given - you could override that in your upload_to callable too if you liked.
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Why exactly is eval evil?
I know that Lisp and Scheme programmers usually say that eval should be avoided unless strictly necessary. I’ve seen the same recommendation for several programming languages, but I’ve not yet seen a list of clear arguments against the use of eval . Where can I find an account of the potentia...
How to view the Folder and Files in GAC?
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Install:
gacutil -i "path_to_the_assembly"
View:
Open in Windows Explorer folder
.NET 1.0 - NET 3.5: c:\windows\assembly (%systemroot%\assembly)
.NET 4.x: %windir%\Microsoft.NET\assembly
OR gacutil –l
When you are ...
Can I use complex HTML with Twitter Bootstrap's Tooltip?
If I check official documentation , I can see a property called HTML:
5 Answers
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What does $NON-NLS-1$ mean?
...pse can be configured to detect string literals, so that you don't accidentally have leave unexternalized UI strings in the code; however, there are strings which should not be externalized (such as regexps) and so, //$NON-NLS-1$ gives you a way to communicate that fact to the compiler.
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How are VST Plugins made?
... VST2.
These tutorials cover creating plugins that run on Win/Mac, 32/64, all plugin formats from the same code base.
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“ArrayAdapter requires the resource ID to be a TextView” xml problems
...nt to display the information from this.file = fileop.ReadFileAsList("Installed_packages.txt"); . My code:
3 Answers
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How to do stateless (session-less) & cookie-less authentication?
...ry request to authenticate the user. This, in my opinion, is unsafe, especially if the application isn't single page. It is also not scalable, especially if you want to add authorization to your app in addition to authentication in the future (although I guess you could build something based on logi...