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Find a Pull Request on Github where a commit was originally created

...pull requests are a great way to quickly "grok" a project as, instead of small atomic changes to the source, you get larger groupings of logical changes. Analogous to organizing the lines in your code into related "stanzas" to make it easier to read. ...
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Big-oh vs big-theta [duplicate]

It seems to me like when people talk about algorithm complexity informally, they talk about big-oh. But in formal situations, I often see big-theta with the occasional big-oh thrown in. I know mathematically what the difference is between the two, but in English, in what situation would using big-oh...
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How do I use vi keys in ipython under *nix?

... ipython --TerminalInteractiveShell.editing_mode=vi ... or to set it globally in the profile configuration (~/.ipython/profile_default/ipython_config.py; create it with ipython profile create if you don't have it) with: c.TerminalInteractiveShell.editing_mode = 'vi' ...
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simulate background-size:cover on or

... that it doesn't handle scaling correctly. If the surrounding element is smaller than the video file, it isn't scaled down. Even if you give the video tag a tiny initial size, like 16px by 9px, auto ends up forcing it to a minimum of its native file-size. With the current top-voted solution on this ...
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jQuery - get a list of values of an attribute from elements of a class

I have a class .object which has an attribute called level . I want to get a list of all the different values of level on the page so I can select the highest one. ...
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How to vertically align into the center of the content of a div with defined width/height?

What would be the correct method to vertically center any content in a defined width/height div . 4 Answers ...
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What is the difference between D3 and jQuery?

...jQuery you directly manipulate elements, but with D3 you provide data and callbacks through D3's unique data(), enter() and exit() methods and D3 manipulates elements. D3 is usually used for data visualization but jQuery is used for creating web apps. D3 has many data visualization extensions and jQ...
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How to retrieve POST query parameters?

... Express 3.0. This was different starting Express 4.0 to 4.15: $ npm install --save body-parser and then: var bodyParser = require('body-parser') app.use( bodyParser.json() ); // to support JSON-encoded bodies app.use(bodyParser.urlencoded({ // to support URL-encoded bodies extended...
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Twitter bootstrap 3 two columns full height

... display: table-cell; float: none; } } Codepen demo Now, for smaller screens, the columns will behave like default bootstrap columns (each getting full width). 3) If the 1:3 ratio is necessary for all screen widths - then it's probably a better to remove bootstrap's col-md-* classes fro...
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How to evaluate a math expression given in string form?

...is in a server context with user input. The executed JavaScript can access all Java classes and thus hijack your application without limit. – Boann Sep 21 '15 at 11:08 4 ...