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How to get current relative directory of your Makefile?
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It needs to have the value expanded immediately so the := operator should be used. As in mkfile_path := and current_dir = (otherwise the right side values could be evaluated later when the MAKEFILE_LIST has changed after other Makefiles were included
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How to return multiple objects from a Java method?
I want to return two objects from a Java method and was wondering what could be a good way of doing so?
25 Answers
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What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?
... properly).
Use the second option if you need to ensure data consistency, and each thread needs to have an up-to-date view of the map. Use the first if performance is critical, and each thread only inserts data to the map, with reads happening less frequently.
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What exactly is a Context in Java? [duplicate]
I Googled this and read the Java documentation, but I'm a bit confused. Can somebody please explain what a Context is in plain English?
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How to format a floating number to fixed width in Python
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So I understand that the 4f represents limiting the decimals to 4 (with trailing zeros), but what does the 10 mean? Does that mean this formatting won't work with integers greater than 9999999999 (ten 9's)? Just curious.
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Format string, integer with leading zeros
... the format string "img_%03d.jpg" to get decimal numbers with three digits and leading zeros.
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delegate keyword vs. lambda notation
...delegates (such as System.Func) uses System.Linq.Enumerable. Linq to SQL (and anything else) with expressions uses System.Linq.Queryable. Check out the parameters on those methods.
An Explanation from ScottGu. In a nutshell, Linq in-memory will produce some anonymous methods to resolve your query...
Remove IE10's “clear field” X button on certain inputs?
... any way to disable it?
For instance, if the form is a single text field and already has a "clear" button beside it, it's superfluous to also have the X. In this situation, it would be better to remove it.
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How to create nonexistent subdirectories recursively using Bash?
... script that will dump some databases into a nice/neat directory structure and I realized that I need to test to make sure that the directories exist before I create them. The code I have works, but it seems that there is a better way to do it. Any suggestions?
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Cross Domain Form POSTing
I've seen articles and posts all over (including SO) on this topic, and the prevailing commentary is that same-origin policy prevents a form POST across domains. The only place I've seen someone suggest that same-origin policy does not apply to form posts, is here .
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