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How to evaluate a math expression given in string form?
...ntext with user input. The executed JavaScript can access all Java classes and thus hijack your application without limit.
– Boann
Sep 21 '15 at 11:08
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Is it possible to serialize and deserialize a class in C++?
Is it possible to serialize and deserialize a class in C++?
13 Answers
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How to change the text on the action bar
Currently it just displays the name of the application and I want it to display something custom and be different for each screen in my app.
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Make a div into a link
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For me the no-nos are: javascript (shouldn't be needed just for a link, and very bad SEO/accessibility); invalid HTML.
In essence it's this:
Build your panel using normal CSS techniques and valid HTML.
Somewhere in there put a link that you want to be the default link if the user clicks on th...
How to detect if a stored procedure already exists
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If you DROP and CREATE the procedure, you will loose the security settings. This might annoy your DBA or break your application altogether.
What I do is create a trivial stored procedure if it doesn't exist yet. After that, you can AL...
Changing variable names in Vim
I am using Vim to read through a lot of C and Perl code containing many single letter variable names.
7 Answers
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check if directory exists and delete in one command unix
Is it possible to check if a directory exists and delete if it does,in Unix using a single command? I have situation where I use ANT 'sshexec' task where I can run only a single command in the remote machine. And I need to check if directory exists and delete it...
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Callback functions in C++
In C++, when and how do you use a callback function?
10 Answers
10
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Calling a Java method with no name
I'm looking at the code below and found something a bit strange:
8 Answers
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Profiling Django
...ngo Debug Toolbar. It will show you what queries are executed on each page and how much time they take. It's a really useful, powerful and easy to use tool.
Also, read recommendations about Django performance in Database access optimization from the documentation.
And Django performance tips by
J...