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Format numbers to strings in Python

I need to find out how to format numbers as strings. My code is here: 8 Answers 8 ...
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Command to get nth line of STDOUT

Is there any bash command that will let you get the nth line of STDOUT? 13 Answers 13 ...
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Add new row to dataframe, at specific row-index, not appended?

The following code combines a vector with a dataframe: 4 Answers 4 ...
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Is PHP's count() function O(1) or O(n) for arrays?

Does count() really count the all the elements of a PHP array, or is this value cached somewhere and just gets retrieved? ...
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Is onload equal to readyState==4 in XMLHttpRequest?

I am confuse about the xhr return event, as I can tell, there are not so much different between onreadystatechange --> readyState == 4 and onload, is it true? ...
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Using a remote repository with non-standard port

I am setting up my local git project for a remote repository. The remote repository is being served on a non-standard port (4019). ...
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How to find out which JavaScript events fired?

... Just thought I'd add that you can do this in Chrome as well: Ctrl + Shift + I (Developer Tools) > Sources> Event Listener Breakpoints (on the right). You can also view all events that have already been attached by simply right clicking on the element and then browsi...
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How do you represent a JSON array of strings?

... I'll elaborate a bit more on ChrisR awesome answer and bring images from his awesome reference. A valid JSON always starts with either curly braces { or square brackets [, nothing else. { will start an object: { "key": value, "another key": valu...
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What does a script-Tag with src AND content mean?

Example from Googles +1 button: 4 Answers 4 ...
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Min/Max-value validators in asp.net mvc

Validation using attributes in asp.net mvc is really nice. I have been using the [Range(min, max)] validator this far for checking values, like e.g.: ...