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How to get certain commit from GitHub project

I need to download the Facebook API from GitHub . Normally, I just click on the 'Downloads" tab to download the latest source code. In this case, I need an older commit: 91f256424531030a454548693c3a6ca49ca3f35a , but I have no idea how to get the entire project from that commit... ...
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What's the point of malloc(0)?

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Databinding an enum property to a ComboBox in WPF

As an example take the following code: 13 Answers 13 ...
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Simpler way to create dictionary of separate variables?

I would like to be able to get the name of a variable as a string but I don't know if Python has that much introspection capabilities. Something like: ...
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download file using an ajax request

I want to send an "ajax download request" when I click on a button, so I tried in this way: 12 Answers ...
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When should I use Struct vs. OpenStruct?

In general, what are the advantages and disadvantages of using an OpenStruct as compared to a Struct? What type of general use-cases would fit each of these? ...
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jQuery show for 5 seconds then hide

I'm using .show to display a hidden message after a successful form submit. 3 Answers ...
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Compare JavaScript Array of Objects to Get Min / Max

I have an array of objects and I want to compare those objects on a specific object property. Here's my array: 16 Answers ...
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What is the difference between & vs @ and = in angularJS

I am very new to AngularJS. can anybody explain me the difference among these AngularJS operators: &, @ and = when isolating scope with proper example. ...