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Get the position of a div/span tag

...on will tell you the x,y position of the element relative to the page. Basically you have to loop up through all the element's parents and add their offsets together. function getPos(el) { // yay readability for (var lx=0, ly=0; el != null; lx += el.offsetLeft, ly += el.of...
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How do I create a dynamic key to be added to a JavaScript object variable [duplicate]

...ject, however: myObj[200] = 5; there's no such side-effect. The property called "200" of both the array and the object will be set to the value 5 in otherwise the exact same way. One might think that because that length behavior is kind-of handy, you might as well make all objects instances of the...
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How do I get the current version of my iOS project in code?

...n NSBundle instead of UIApplication this will also allow to replace static calls with the instance ones. – Zapko Dec 9 '16 at 1:03 ...
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How to use > in an xargs command?

... must always be a single completely separate argument to the command to avoid code injection bugs. What you need to do, is this: xargs -I{} sh -c 'grep ABC "$1" > "$1.out"' -- {} Applies to xargs as well as find. By the way, never use xargs without the -0 option (unless for very rare and con...
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REST response code for invalid data

...r conditional requests when using last-modified date and ETags. 403 - Forbidden is used when the server wishes to prevent access to a resource. The only other choice that is possible is 422 - Unprocessable entity. share ...
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How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly

... As an aside - you shouldn't be naming your anonymous (lambda) functions. Always use a def statement instead of an assignment statement that binds a lambda expression directly to an identifier. – ron_g ...
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How do I add files without dots in them (all extension-less files) to the gitignore file?

...want to version: git add -f -- myFile Note that with git 2.9.x/2.10 (mid 2016?), it might be possible to re-include a file if a parent directory of that file is excluded if there is no wildcard in the path re-included. Nguyễn Thái Ngọc Duy (pclouds) is trying to add this feature: commit...
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How to crop an image using C#?

...My images were cropping with the correct size but at incorrect X/Y until I called SetResolution on the target image as suggested in the answer by @IntellyDev. – Brent Keller May 10 '17 at 12:59 ...
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How to Remove Array Element and Then Re-Index Array?

...ting that you can unset multiple variables/array indexes in a single unset call unset($foo[0], $foo[3], $bar[1]); – ᴍᴀᴛᴛ ʙᴀᴋᴇʀ May 14 '14 at 9:41 ...
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How to concatenate multiple lines of output to one line?

... | tr '\n' ' ' was not working for me when called through php exec function. It was ignoring tr, and just giving last match from grep. | xargs worked. – Adarsha Mar 26 '15 at 17:07 ...