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When is it right for a constructor to throw an exception?
...hat supports one-stage construction, where the object is fully initialized and usable after construction.
One-stage constructors should throw if they fail to fully initialize the object. If the object cannot be initialized, it must not be allowed to exist, so the constructor must throw.
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jQuery returning “parsererror” for ajax request
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I recently encountered this problem and stumbled upon this question.
I resolved it with a much easier way.
Method One
You can either remove the dataType: 'json' property from the object literal...
Method Two
Or you can do what @Sagiv was saying by returnin...
Does order of where clauses matter in SQL?
...irstName , none of these columns are indexed.
LastName is more unique, and FirstName is less unique.
6 Answers
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Test if a variable is a list or tuple
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Go ahead and use isinstance if you need it. It is somewhat evil, as it excludes custom sequences, iterators, and other things that you might actually need. However, sometimes you need to behave differently if someone, for instance, ...
What is the garbage collector in Java?
I am new to Java and confused about the garbage collector in Java. What does it actually do and when does it comes into action. Please describe some of the properties of the garbage collector in Java.
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Proper REST response for empty table?
...fused as an author of a client for your application if I got a 200 one day and a 404 the next day just because someone happened to remove a couple of users. What am I supposed to do? Is my URL wrong? Did someone change the API and neglect to leave a redirection.
Why not 204 (No Content) ?
Here's a...
Difference between “git add -A” and “git add .”
The command git add [--all|-A] appears to be identical to git add . . Is this correct? If not, how do they differ?
11 An...
Not equal != operator on NULL
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<> is Standard SQL-92; != is its equivalent. Both evaluate for values, which NULL is not -- NULL is a placeholder to say there is the absence of a value.
Which is why you can only use IS NULL/IS NOT NULL as predicates for such situ...
In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?
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Try this on the PowerShell command line:
. .\MyFunctions.ps1
A1
The dot operator is used for script include.
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Javascript fuzzy search that makes sense
...arch JavaScript library to filter an array. I've tried using fuzzyset.js and fuse.js , but the results are terrible (there are demos you can try on the linked pages).
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