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How can I reference a commit in an issue comment on GitHub?

... To reference a commit, simply write its SHA-hash, and it'll automatically get turned into a link. See also: The Autolinked references and URLs / Commit SHAs section of Writing on GitHub. share ...
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How to check if a column exists in Pandas

Is there a way to check if a column exists in a Pandas DataFrame? 3 Answers 3 ...
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Iterating a JavaScript object's properties using jQuery

...ur point. The each function takes an array or object as the first argument and a function as a second. This functions gets calld for every element in the array / every property in the object. Every time the function is called, it get the index and value / name and value passed in as arguments. In my...
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What is the Comonad typeclass in Haskell?

...re's a good chance that we're dealing with a comonad". Sequences, streams, and segments Comonads in everyday life share | improve this answer | follow | ...
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Sass .scss: Nesting and multiple classes?

...ng the &. This notation is most often used to write pseudo-elements and -classes: .element{ &:hover{ ... } &:nth-child(1){ ... } } However, you can place the & at virtually any position you like*, so the following is possible too: .container { background:red; #...
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jQuery equivalent of getting the context of a Canvas

... ensure you don't try calling the canvas element before it's fully created and registered to the DOM. share | improve this answer | follow | ...
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Google access token expiration time

...ve a look at: https://developers.google.com/accounts/docs/OAuth2UserAgent#handlingtheresponse It says: Other parameters included in the response include expires_in and token_type. These parameters describe the lifetime of the token in seconds... ...
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Bundle ID Suffix? What is it?

...ple asks for the Bundle ID Suffix. What is this? Not sure what to put here and what the significance of it is. 2 Answers ...
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How to select .NET 4.5.2 as a target framework in Visual Studio

...e building apps that target the .NET Framework 4.5.2 through Visual Studio and third party IDEs. share | improve this answer | follow | ...
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Rails 4: before_filter vs. before_action

...ore_filter. However all before_filters syntax are deprecated in Rails 5.0 and will be removed in Rails 5.1 share | improve this answer | follow | ...