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iOS app icon with transparent background showing black background on device

...paque. If the icon’s boundaries are smaller than the recommended sizes—or you use transparency to create “see-through” areas—the resulting icon can appear to float on a black background, which tends to look especially unattractive on the beautiful wallpapers that users choose. https://de...
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How to count TRUE values in a logical vector

...icient/idiomatic way to count the number of TRUE values in a logical vector? I can think of two ways: 8 Answers ...
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Git fails when pushing commit to github

...of commits to github without problem. However, now I get the following error: 7 Answers ...
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How do I auto-hide placeholder text upon focus using css or jquery?

This is done automatically for every browser except Chrome . 26 Answers 26 ...
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How to use sed/grep to extract text between two words?

I am trying to output a string that contains everything between two words of a string: 12 Answers ...
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How to read data From *.CSV file using javascript?

... NOTE: I concocted this solution before I was reminded about all the "special cases" that can occur in a valid CSV file, like escaped quotes. I'm leaving my answer for those who want something quick and dirty, but I recommend Evan's answer for accuracy. This...
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Why doesn't RecyclerView have onItemClickListener()?

I was exploring RecyclerView and I was surprised to see that RecyclerView does not have onItemClickListener() . 32 Ans...
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How do I check the difference, in seconds, between two dates?

.... I have objects that want to be refreshed every so often, so I want to record when they were created, check against the current timestamp, and refresh as necessary. ...
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In Ruby on Rails, how do I format a date with the “th” suffix, as in, “Sun Oct 5th”?

I want to display dates in the format: short day of week, short month, day of month without leading zero but including "th", "st", "nd", or "rd" suffix. ...
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HTTP Basic Authentication - what's the expected web browser experience?

... To help everyone avoid confusion, I will reformulate the question in two parts. First : "how can make an authenticated HTTP request with a browser, using BASIC auth?". In the browser you can do a http basic auth first by waiting the prompt to come, or by editing the ...