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What are the effects of exceptions on performance in Java?
...ns for try at all in general - everything that needs to happen is already done when the class is loaded by the VM) and it makes throw not quite as slow. I don't know which JVM uses this new, better technique...
...but are you writing in Java so your code later on only runs on one JVM on one specif...
What is the difference between & vs @ and = in angularJS
...ing with embedded expressions (myattr="my_{{helloText}}"). Think of it as "one-way" communication from the parent scope into the child directive. John Lindquist has a series of short screencasts explaining each of these. Screencast on @ is here: https://egghead.io/lessons/angularjs-isolate-scope-a...
How to set a default value for an existing column
...+1 for specifying a constraint name, so SQL Server doesn't create a random one.
– HardCode
Jul 22 '11 at 15:25
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Catch multiple exceptions in one line (except block)
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How do I catch multiple exceptions in one line (except block)
Do this:
try:
may_raise_specific_errors():
except (SpecificErrorOne, SpecificErrorTwo) as error:
handle(error) # might log or have some other default behavior...
The parentheses are requir...
How to print last two columns using awk
...le
Note: this works only if at least two columns exist. On records with one column you will get a spurious "-1 column1"
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Entity Framework - Code First - Can't Store List
... In .NET Core you can. I'm using this exact piece of code in one of my projects.
– Sasan
Apr 8 '19 at 14:26
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How to get all properties values of a JavaScript Object (without knowing the keys)?
... If you are reading this answer, you should definitely read the other one
– mgarciaisaia
Dec 11 '15 at 23:35
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If i synchronized two methods on the same class, can they run simultaneously?
...n't simultaneously execute them on the same object from different threads (one of the two methods will block until the other is finished).
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When should you branch?
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There are several uses for branching. One of the most common uses is for separating projects that once had a common code base. This is very useful to experiment with your code, without affecting the main trunk.
In general, you would see two branch types:
Featu...
How can I copy data from one column to another in the same table?
...ork if you want to transfer old value to other column and update the first one: UPDATE table SET columnA = 'new value', columnB = columnA. Like other answer says - don't forget the WHERE clause to update only what's needed.
– Carl di Ortus
Feb 9 '18 at 8:45
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