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How to check for an undefined or null variable in JavaScript?
We are frequently using the following code pattern in our JavaScript code
24 Answers
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Obtain Bundle Identifier programmatically
How can I obtain a string of the Bundle Identifier programmatically from within my App?
6 Answers
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Sending POST data in Android
I'm experienced with PHP, JavaScript and a lot of other scripting languages, but I don't have a lot of experience with Java or Android.
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PostgreSQL, checking date relative to “today”
Was wondering if someone could assist with some Postgres. I have a table which has a column called mydate which is a postgres date type. I want to do something like:
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Swift variable decorations with “?” (question mark) and “!” (exclamation mark)
I understand that in Swift all variables must be set with a value, and that by using optionals we can set a variable to be set to nil initially.
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AngularJS : automatically detect change in model
Suppose I wanted to do something like automatically run some code (like saving data to a server) whenever a model's values change. Is the only way to do this by setting something like ng-change on each control that could possibly alter the model?
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$(this).val() not working to get text from span using jquery
Giving this html, i want to grab "August" from it when i click on it:
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How to remove all CSS classes using jQuery/JavaScript?
Instead of individually calling $("#item").removeClass() for every single class an element might have, is there a single function which can be called which removes all CSS classes from the given element?
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SQL WHERE condition is not equal to?
Is it possible to negate a where clause?
10 Answers
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What is the purpose of fork()?
In many programs and man pages of Linux, I have seen code using fork() . Why do we need to use fork() and what is its purpose?
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