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Is it possible to perform a 'grep search' in all the branches of a Git project?
...d about the argument size, so if you run into this problem, do something like:
git rev-list --all | (while read rev; do git grep -e <regexp> $rev; done)
(see an alternative in the last section of this answer, below)
Don't forget those settings, if you want them:
# Allow Extended Regular ...
What is the difference between atan and atan2 in C++?
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nbro
10.9k1717 gold badges7676 silver badges140140 bronze badges
answered Nov 12 '08 at 9:22
Chris Jester-Youn...
Is there a way to instantiate a class by name in Java?
I was looking as the question : Instantiate a class from its string name which describes how to instantiate a class when having its name. Is there a way to do it in Java? I will have the package name and class name and I need to be able to create an object having that particular name.
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Revert the `--no-site-packages` option with virtualenv
I have created a virtualenv using the --no-site-packages option and installed lots of libraries. Now I would like to revert the --no-site-packages option and use also the global packages.
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How to set selected item of Spinner by value, not by position?
... edited Jan 4 '18 at 12:43
Kunwar Ajeet Singh Rajput
39544 silver badges1212 bronze badges
answered Nov 19 '10 at 18:18
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How to run `rails generate scaffold` when the model already exists?
...ffold
scaffold_controller
session_migration
stylesheets
If you'd like to generate a controller scaffold for your model, see scaffold_controller. Just for clarity, here's the description on that:
Stubs out a scaffolded controller and its views. Pass the model name,
either CamelCased...
Android: how to check if a View inside of ScrollView is visible?
I have a ScrollView which holds a series of Views . I would like to be able to determine if a view is currently visible (if any part of it is currently displayed by the ScrollView ). I would expect the below code to do this, surprisingly it does not:
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Is there a way to avoid null check before the for-each loop iteration starts? [duplicate]
Every time I have to iterate over a collection I end up checking for null, just before the iteration of the for-each loop starts. Like this:
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Why there is no ConcurrentHashSet against ConcurrentHashMap
...map (or map class).
Prior to Java 8, you produce a concurrent hash set backed by a concurrent hash map, by using Collections.newSetFromMap(map)
In Java 8 (pointed out by @Matt), you can get a concurrent hash set view via ConcurrentHashMap.newKeySet(). This is a bit simpler than the old newSetFromM...
Simple regular expression for a decimal with a precision of 2
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Valid regex tokens vary by implementation. A generic form is:
[0-9]+(\.[0-9][0-9]?)?
More compact:
\d+(\.\d{1,2})?
Both assume that both have at least one digit before and one after the decimal place.
To require that the whole strin...