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Can someone explain collection_select to me in clear, simple terms?
I am going through the Rails API docs for collection_select and they are god-awful.
2 Answers
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Detect network connection type on Android
How do you detect the network connection type on Android?
13 Answers
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What is the equivalent of “!=” in Excel VBA?
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Fun fact to back this answer: Visual Basic and Pascal languages store strings with their length in the beginning and the content itself right after that. C-based and Java languages, on the other hand, do not store the length and have the '\0' (null) terminator to sign...
Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash
...ior applies to any default value that is subsequently mutated (e.g. hashes and strings), not just arrays.
TL;DR: Use Hash.new { |h, k| h[k] = [] } if you want the most idiomatic solution and don’t care why.
What doesn’t work
Why Hash.new([]) doesn’t work
Let’s look more in-depth at why...
DataContractSerializer doesn't call my constructor?
...y will leak! 2) You are initializing the object twice, once in constructor and once by the deserialized values.
– Dudu
Feb 13 '11 at 3:02
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class name and method name dropdown list is missing (visual studio setting)
Does anyone know how to get my class name and method name dropdown lists again? It's the dropdown lists that are usually above the code. It's just a setting but i can't seem to find it. I don't want to reset my setting btw. I shouldn't have to.
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“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2
I'm trying learn Python (3 to be more specific) and I'm getting this error:
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How can I check if string contains characters & whitespace, not just whitespace?
... of non whitespace:
if (/\S/.test(myString)) {
// string is not empty and not just whitespace
}
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SQL Server ':setvar' Error
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The :setvar only works in SQL command mode, so you are possibly within normal SQL execution in the management studio and have not swapped to command mode.
This can be done through the user interface in SQL Server Management Studio by going to the "Query" men...
How do I view events fired on an element in Chrome DevTools?
...fired when I interact with it because I am trying to find out which event handler to use.
5 Answers
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