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What is the purpose of the : (colon) GNU Bash builtin?
...and that does nothing, being little more than a comment leader, but is actually a shell builtin in and of itself?
12 Answer...
Easy way to convert Iterable to Collection
...ewHashSet(Iterable), among other similar methods. This will of course copy all the elements in to memory. If that isn't acceptable, I think your code that works with these ought to take Iterable rather than Collection. Guava also happens to provide convenient methods for doing things you can do on a...
Is a one column table good design? [closed]
It it ok to have a table with just one column? I know it isn't technically illegal, but is it considered poor design?
15 A...
Reset PHP Array Index
... answered Jun 7 '19 at 4:52
Allan MwesigwaAllan Mwesigwa
75077 silver badges1313 bronze badges
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Short circuit Array.forEach like calling break
...terribly pretty. A traditional for loop might be more appropriate if you really need to break inside it.
Use Array#some
Instead, use Array#some:
[1, 2, 3].some(function(el) {
console.log(el);
return el === 2;
});
This works because some returns true as soon as any of the callba...
Error: Argument is not a function, got undefined
...
All I had to do to get it working was the second suggestion (i.e. set ng-app="myApp"). If I removed the [], I got another error.
– Jason
Jul 8 '13 at 7:38
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git: How do I get the latest version of my code?
...it clean -xffd
git pull
Again, this will nuke any changes you've made locally so use carefully. Think about rm -Rf when doing this.
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Copy constructor versus Clone()
...r specified whether the Clone() method on ICloneable should be a deep or shallow clone, thus the interface is semantically broken as your callers won't know whether the call will deep or shallow clone the object.
Instead, you should define your own IDeepCloneable (and IShallowCloneable) interfaces ...
How to update Ruby to 1.9.x on Mac?
...ve) RVM (Ruby Version Manager) is the Standard for upgrading your Ruby installation on OSX: https://rvm.io
To get started, open a Terminal Window and issue the following command:
\curl -L https://get.rvm.io | bash -s stable --ruby
( you will need to trust the RVM Dev Team that the command is no...
How to output git log with the first line only?
I am trying to customize the format for git log . I want all commits to be shown in one line. Each line should only show the first line of the commit message.
I found out that git log --pretty=short should do the trick but on my computer it shows the full log as git log does (besides the ti...