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Why use iterators instead of array indices?

Take the following two lines of code: 27 Answers 27 ...
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Fastest way to replace NAs in a large data.table

I have a large data.table , with many missing values scattered throughout its ~200k rows and 200 columns. I would like to re code those NA values to zeros as efficiently as possible. ...
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“var” or no “var” in JavaScript's “for-in” loop?

What's the correct way to write a for-in loop in JavaScript? The browser doesn't issue a complaint about either of the two approaches I show here. First, there is this approach where the iteration variable x is explicitly declared: ...
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Executing elements inserted with .innerHTML

I've got a script that inserts some content into an element using innerHTML . 20 Answers ...
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How to add a vertical Separator?

I want to add a vertical Separator to a Grid, but i can only find the horizontal. Isn't there a Property, where you can enter if the line of the separator should be horizontal or vertical? ...
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How can I check whether Google Maps is fully loaded?

I’m embedding Google Maps into my web site. Once Google Maps is loaded, I need to kick off a few JavaScript processes. 9 ...
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How to pass prepareForSegue: an object

I have many annotations in a mapview (with rightCalloutAccessory buttons). The button will perform a segue from this mapview to a tableview . I want to pass the tableview a different object (that holds data) depending on which callout button was clicked. ...
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How do I get an apk file from an Android device?

How do I get the apk file from an android device? Or how do I transfer the apk file from device to system? 24 Answers ...
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How to programmatically empty browser cache?

I am looking for a way to programmatically empty the browser cache. I am doing this because the application caches confidential data and I'd like to remove those when you press "log out". This would happen either via server or JavaScript. Of course, using the software on foreign/public computer is s...
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Why do I get access denied to data folder when using adb?

I connected to my live device using the adb and the following commands: 14 Answers 14 ...