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JavaScript - get the first day of the week from current date

... Using the getDay method of Date objects, you can know the number of day of the week (being 0=Sunday, 1=Monday, etc). You can then subtract that number of days plus one, for example: function getMonday(d) { d = new Date(d); var day = d.getDay(), diff = d.getDate()...
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How to upload a project to Github

... will say "Initialized empty git repository in ....git" (... is the path). Now you need to tell git about your files by adding them to your repository. Do this with git add filename. If you want to add all your files, you can do git add . Now that you have added your files and made your changes, you...
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How do I undo the most recent local commits in Git?

... Undoing a commit is a little scary if you don't know how it works. But it's actually amazingly easy if you do understand. Say you have this, where C is your HEAD and (F) is the state of your files. (F) A-B-C ↑ master You want to nuke commit C and never see i...
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How to run a function when the page is loaded?

...pted some great functions since the release of jQuery. All modern browsers now have their own DOM ready function without the use of a jQuery library. I'd recommend this if you use native Javascript. document.addEventListener('DOMContentLoaded', function() { alert("Ready!"); }, false); ...
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Moving Files into a Real Folder in Xcode

...o them to match what you did in step 1. All the references in Xcode should now be red (that's OK!). From the Identity and Type manager, select the Group in Xcode that you want to relocate, then click the folder icon from the info pane: In the Finder selection dialog, locate the equivalent new fol...
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How to find what code is run by a button or element in Chrome using Developer Tools

...glement of minified code: (click to zoom) 3. Find the glorious code! Now, the trick here is to not get carried away pressing the key, and keep an eye out on the screen. Press the F11 key (Step In) until desired source code appears Source code finally reached In the jsFiddle sample provided...
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Combining multiple git repositories

...f phd/figures and phd/thesis (just replace code with figures and thesis). Now your directory structure should look like this: phd |_code | |_.git | |_code | |_(your code...) |_figures | |_.git | |_figures | |_(your figures...) |_thesis |_.git ...
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Memoization in Haskell?

...u can check the work so far by verifying that toList nats gives you [0..] Now, f_tree :: Tree Int f_tree = fmap (f fastest_f) nats fastest_f :: Int -> Int fastest_f = index f_tree works just like with list above, but instead of taking linear time to find each node, can chase it down in loga...
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What is object slicing?

...nk casting back (since not a pointer arithmetic) will work , A a = b; a is now object of type A which has copy of B::foo. It will be mistake to cast it back now i think. – user72424 Aug 12 '11 at 12:27 ...
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How to build an android library with Android Studio and gradle?

...pure Gradle answer, I use this in IntelliJ on a regular basis but I don't know how the integration is with Android Studio. I am a believer in knowing what is going on for me, so this is how I use Gradle and Android. TL;DR Full Example - https://github.com/ethankhall/driving-time-tracker/ Disclaim...