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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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IOS: verify if a point is inside a rect

...nt The point to examine. Return Value true if the rectangle is not null or empty and the point is located within the rectangle; otherwise, false. A point is considered inside the rectangle if its coordinates lie inside the rectangle or on the minimum X or minimum Y edge. ...
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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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What is the significance of initializing direction arrays below with given values when developing ch

...it to a nearby location, 1,0 is east, -1,0 is west, 0,1 is south, 0,-1 is north and so on. (Here I have said top left is 0,0 and bottom right is 4,4 and shown what move each index of the arrays will make from the central point, X, at 2,2.) ..... .536. .1X0. .724. ..... The way it is set up, if y...
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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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drag drop files into standard html file input

... The following works in Chrome and FF, but i've yet to find a solution that covers IE10+ as well: // dragover and dragenter events need to have 'preventDefault' called // in order for the 'drop' event to register. // See: https://dev...
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Node.js: How to send headers with form data using request module?

...rystring = require('querystring'); var request = require('request'); var form = { username: 'usr', password: 'pwd', opaque: 'opaque', logintype: '1' }; var formData = querystring.stringify(form); var contentLength = formData.length; request({ headers: { 'Content-Length':...