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How do I get the height and width of the Android Navigation Bar programmatically?
...ovable in Android. It has been part of Android since 3.0 as a replacement for hardware buttons. Here is a picture:
18 Answe...
Find a Git branch containing changes to a given file
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Find all branches which contain a change to FILENAME (even if before the (non-recorded) branch point)
FILENAME="<filename>"
git log --all --format=%H $FILENAME | while read f; do git branch --contains $f; done | sort -u
Manually inspect:
gitk --all --date-order -- $FILENAME
Fin...
How to comment lines in rails html.erb files? [duplicate]
...n rails notes has a very nice blogpost about commenting in erb-files
the short version is
to comment a single line use
<%# commented line %>
to comment a whole block use a if false to surrond your code like this
<% if false %>
code to comment
<% end %>
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How to step through Python code to help debug issues?
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Yes! There's a Python debugger called pdb just for doing that!
You can launch a Python program through pdb by using pdb myscript.py or python -m pdb myscript.py.
There are a few commands you can then issue, which are documented on the pdb page.
Some useful ones to remem...
How to reorder data.table columns (without copying)
I'd like to reorder columns in my data.table x , given a character vector of column names, neworder :
2 Answers
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“ImportError: No module named” when trying to run Python script
...a script that launches, amongst other things, a python script. I get a ImportError: No module named ..., however, if I launch ipython and import the same module in the same way through the interpreter, the module is accepted.
...
What does new self(); mean in PHP?
...do the same as :
self::$_instance = new MyClass();
Edit : a couple more informations, after the comments.
If you have two classes that extend each other, you have two situations :
getInstance is defined in the child class
getInstance is defined in the parent class
The first situation wo...
How to remove text from a string?
...".replace('data-','');
console.log(ret); //prints: 123
Docs.
For all occurrences to be discarded use:
var ret = "data-123".replace(/data-/g,'');
PS: The replace function returns a new string and leaves the original string unchanged, so use the function return value after the replace(...
Difference between git pull and git pull --rebase
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It's worth noting that saying git pull --rebase is the same as git fetch and git rebase is basically how it is, but it's not exactly semantically equivalent. There are some differences, some of which are explained here. gitolite.co...
Difference between json.js and json2.js
...nt the basic prototypes if they have not already been augmented.
// These forms are obsolete. It is recommended that JSON.stringify and
// JSON.parse be used instead.
if (!Object.prototype.toJSONString) {
Object.prototype.toJSONString = function (filter) {
return JSON.stringify(this, fi...