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Image width/height as an attribute or in CSS? [duplicate]

What's the "correct" semantic way to specify image height and width? In CSS... 12 Answers ...
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How and when to use ‘async’ and ‘await’

From my understanding one of the main things that async and await do is to make code easy to write and read - but is using them equal to spawning background threads to perform long duration logic? ...
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Why use #ifndef CLASS_H and #define CLASS_H in .h file but not in .cpp?

...ny files #included by it, concatenate them all into one massive text file, and then perform syntax analysis and finally it will convert it to some intermediate code, optimize/perform other tasks, and finally generate the assembly output for the target architecture. Because of this, if a file is #in...
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Read an Excel file directly from a R script

... directly into R? Or should I first export the data to a text- or CSV file and import that file into R? 12 Answers ...
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What's the difference between HEAD, working tree and index, in Git?

Can someone tell me the difference between HEAD, working tree and index, in Git? 5 Answers ...
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WebSockets vs. Server-Sent events/EventSource

Both WebSockets and Server-Sent Events are capable of pushing data to browsers. To me they seem to be competing technologies. What is the difference between them? When would you choose one over the other? ...
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AngularJS : Factory and Service? [duplicate]

...gets attention. Since asking this I've completed a few AngularJS projects, and for those I mostly used factory , built up an object and returned the object at the end. My statements below are still true, however. ...
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How line ending conversions work with git core.autocrlf between different operating systems

I've read a lot of different questions and answers on Stack Overflow as well as git documentation on how the core.autocrlf setting works. ...
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Can local storage ever be considered secure? [closed]

... now reasonably well supported. For an offline app, you must still design and implement a secure keystore. Aside: If you are using Node.js, use the builtin crypto API. Native-Javascript Cryptography (pre-WebCrypto) I presume the primary concern is someone with physical access to the computer rea...
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In a storyboard, how do I make a custom cell for use with multiple controllers?

... to use storyboards in an app I'm working on. In the app there are Lists and Users and each contains a collection of the other (members of a list, lists owned by a user). So, accordingly, I have ListCell and UserCell classes. The goal is to have those be re-usable throughout the app (ie, in ...