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JavaScript: empty array, [ ] evaluates to true in conditional structures. Why is this?

I was encountering a lot of bugs in my code because I expected this expression: 2 Answers ...
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What is the difference between “Include Directories” and “Additional Include Directories”

In configuration properties of my project, under the "VC++ directories" there is an entry for "Include Directories". But under "C/C++" option, there is another entry called "Additional Include Directories". Same thing happens with library directories. ...
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Selecting multiple classes with jQuery

I’ve had a good look and can’t seem to find out how to select all elements matching certain classes in one jQuery selector statement such as this: ...
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How do I access this object property with an illegal name?

I'm using a PHP class someone wrote to interface with the BaseCamp API. 2 Answers 2 ...
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Adding a user to a group in django

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How to toggle a boolean?

Is there a really easy way to toggle a boolean value in javascript ? 6 Answers 6 ...
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Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?

...to designate missing values. As I iterate over the data set, I need to detect such missing values and handle them in special ways. ...
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target input by type and name (selector)

I need to change some checkbox inputs to hidden inputs for some but not all inputs on a page. 3 Answers ...
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Get “Value” property in IGrouping

I have a data structure like 4 Answers 4 ...
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Redirect using AngularJS

I'm trying to redirect to another route using: 6 Answers 6 ...