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Searching if value exists in a list of objects using Linq
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LINQ defines an extension method that is perfect for solving this exact problem:
using System.Linq;
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bool has = list.Any(cus => cus.FirstName == "John");
make sure you reference System.Core.dll, that's where LINQ lives.
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How can I round down a number in Javascript?
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You can get the same effect as round-to-zero via x | 0.
– Ahmed Fasih
May 6 '16 at 2:59
add a comment
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Find which version of package is installed with pip
... @techtonik: It's for freezing current modules to a requirements.txt.
– Hugo
Feb 15 '14 at 10:59
@Hugo: I'd u...
How do I get a reference to the app delegate in Swift?
...les added by your subclass of UIApplication, like your managed object context. To resolve this, simply downcast to "AppDelegate" or what ever your UIApplication subclass happens to be called. In Swift 3, 4 & 5, this is done as follows:
let appDelegate = UIApplication.shared.delegate as! AppDele...
Sound alarm when code finishes
I am in a situation where my code takes extremely long to run and I don't want to be staring at it all the time but want to know when it is done.
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Sublime Text 2 multiple line edit
I want to edit multiple lines and every "word" within that line. For example:
9 Answers
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Extract a number from a string (JavaScript)
I have a string in JavaScript like #box2 and I just want the 2 from it.
21 Answers
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How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
...ava and javac will respect that environment variable, you can use /usr/libexec/java_home -v '1.7*' to give you a suitable value to put into JAVA_HOME in order to make command line tools use Java 7.
export JAVA_HOME="`/usr/libexec/java_home -v '1.7*'`"
But standard double-clickable application bun...
In git, what is the difference between merge --squash and rebase?
..., going from (schema taken from SO question):
git checkout stable
X stable
/
a---b---c---d---e---f---g tmp
to:
git merge --squash tmp
git commit -m "squash tmp"
X-------------------G stable
/
a---b---c---d---e---f--...
Difference between a theta join, equijoin and natural join
...e help me better understand it? If I use the = sign on a theta join is it exactly the same as just using a natural join?
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