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Sending a message to nil in Objective-C
....0 documentation: I wonder what " sending a message to nil " means - let alone how it is actually useful. Taking an excerpt from the documentation:
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How do I retrieve an HTML element's actual width and height?
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Beware! offsetHeight/offsetWidth can return 0 if you've done certain DOM modifications to the element recently. You may have to call this code in a setTimeout call after you've modified the element.
– Dan Fabulich
Jan 19 '10 at 5:59
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Should a return statement be inside or outside a lock?
...de I have the return statement inside the lock and sometime outside. Which one is the best?
9 Answers
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Git: Create a branch from unstaged/uncommitted changes on master
...specified tree.”. That assumes your changes in your file system will be GONE afterwards. Without any chance to get them back. Even if you say they won’t, this still leaves a very bad feeling. I don’t trust this at all. Either the documentation is really bad or git’s default behavior is reall...
If using maven, usually you put log4j.properties under java or resources?
... yep. Manually create resources and log4j.properties in the folder mentioned in the answer.
– Nishant
Feb 27 '11 at 9:49
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css - position div to bottom of containing div
... visible*/
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Absolute positioning looks for the nearest relatively positioned parent within the DOM, if one isn't defined it will use the body.
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Use of “global” keyword in Python
...side that module as "module.global_var" rather than simply "global_var" as one might expect.
– juice
Oct 16 '13 at 5:30
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How to supply value to an annotation from a Constant java
...ually in java there is no way to protect items in an array. At runtime someone can always do FieldValues.FIELD1[0]="value3", therefore the array cannot be really constant if we look deeper.
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Edit and Continue: “Changes are not allowed when…”
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The one thing that solved it for me isn't mentioned here: I had to disable (uncheck) the “Enable Edit and Continue” option under Tools > Options > Debugging. This is complete the opposite of what you would intuitively ...
JavaScript exponents
How do you do exponents in JavaScript?
5 Answers
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