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Invalid argument supplied for foreach()
It often happens to me to handle data that can be either an array or a null variable and to feed some foreach with these data.
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How to properly create composite primary keys - MYSQL
... gross oversimplification of an intense setup I am working with. table_1 and table_2 both have auto-increment surrogate primary keys as the ID. info is a table that contains information about both table_1 and table_2 .
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Django - “no module named django.core.management”
I get the following error when trying to run Django from the command line.
21 Answers
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How to add an extra source directory for maven to compile and include in the build jar?
...nt to include in my build process, in other words, I want maven to compile and include the sources there in my build. How!?
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How can I reset a react component including all transitively reachable state?
...set. The ideal behavior would be equivalent to removing the old component and readding a new, pristine component.
3 Answer...
Difference between “git add -A” and “git add .”
The command git add [--all|-A] appears to be identical to git add . . Is this correct? If not, how do they differ?
11 An...
Which comment style should I use in batch files?
I've been writing some batch files, and I ran into this user guide , which has been quite informative. One thing it showed me was that lines can be commented not just with REM , but also with :: . It says:
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Making 'git log' ignore changes for certain paths
...now (git 1.9/2.0, Q1 2014) with the introduction pathspec magic :(exclude) and its short form :! in commit ef79b1f and commit 1649612, by
Nguyễn Thái Ngọc Duy (pclouds), documentation can be found here.
You now can log everything except a sub-folder content:
git log -- . ":(exclude)sub"
git lo...
How to iterate over the keys and values in an object in CoffeeScript?
...ld not initialise arr as arr = [], you should use arr = {}. In Javascript (and Coffeescript) arrays have numeric indices. Objects behave like associative arrays/dicts.
– Morgan Harris
Mar 18 '13 at 3:55
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Combining two expressions (Expression)
I have two expressions of type Expression<Func<T, bool>> and I want to take to OR, AND or NOT of these and get a new expression of the same type
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