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How to check null objects in jQuery
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You can use the length property of the jQuery collection returned by your selector:
if ( $('#myDiv').length ){}
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Should we @Override an interface's method implementation?
...o do that right click on ur project-> properties-> Java compiler and select one that is higher than 1.5.
– Rose
Nov 14 '12 at 19:18
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Start/Stop and Restart Jenkins service on Windows
... To run cmd in admin mode 1. Open task manager 2. File - New Task 3. Select check box "Create task with admin previleges"
– Amit Jain
Jul 19 '18 at 6:01
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PostgreSQL: How to change PostgreSQL user password?
...is an object, not a string. Compare with ALTER TABLE "table_name" or even SELECT * FROM "table_name". You couldn't use single quotes in these contexts with tables, and it's the same with users/roles.
– P Daddy
Apr 13 '16 at 5:11
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Cannot find or open the PDB file in Visual Studio C++ 2010
...e debug symbols for. Go to Tools->Options->Debugging->Symbols and select checkbox "Microsoft Symbol Servers", Visual Studio will download PDBs automatically. Or you may just ignore these warnings if you don't need to see correct call stack in these modules.
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Detect the Enter key in a text input field
...re for for legacy browsers support)
// keyup is not compatible with Jquery select(), Keydown is.
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Writing to output window of Visual Studio
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I tried this on a set of unit tests. I debugged the selected test, but there was nothing of what I tried to print out in the debug window.
– Frank H.
Apr 22 '15 at 16:13
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“rm -rf” equivalent for Windows?
... files, rmdir /s /q is typically significantly faster than the equivalent "select dir, shift + delete" operation in explorer.
– Wedge
Sep 19 '08 at 0:29
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Why is `[` better than `subset`?
...vars, drop = drop]. The problem is how to get from the unquoted subset and select arguments to something that you can validly pass to [.data.frame.
– joran
Oct 2 '17 at 21:33
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IndentationError: unindent does not match any outer indentation level
...DLE editor you can do as it suggests in one of similar error messages:
1) select all, e.g. Ctrl + A
2) Go to Format -> Untabify Region
3) Double check your indenting is still correct, save and rerun your program.
I'm using Python 2.5.4
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