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What is a Question Mark “?” and Colon “:” Operator Used for? [duplicate]

...ard term for them or where I can find more information on their use? I've read that they are similar to an 'if' 'else' statement. ...
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Safely remove migration In Laravel

... If the migration has been run (read: migrated) then you should roll back your migration to clear the history from your database table. Once you're rolled back you should be able to safely delete your migration file and then proceed with migrating again. ...
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What does the Q_OBJECT macro do? Why do all Qt objects need this macro?

...oc, is the program that handles Qt's C++ extensions. The moc tool reads a C++ header file. If it finds one or more class declarations that contain the Q_OBJECT macro, it produces a C++ source file containing the meta-object code for those classes. Among other things, meta-object...
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What are the implications of using “!important” in CSS? [duplicate]

...verride website styles. It's used a lot by accessibility tools like screen readers, ad blockers, and more. Overriding 3rd party code & inline styles. Generally I'd say this is a case of code smell, but sometimes you just have no option. As a developer, you should aim to have as much control ov...
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Is it worth hashing passwords on the client side

...dit All of this is error prone and tedious and somewhat hard to get right (read: secure). If ever possible, consider using authentication protocol implementations already written by knowledgeable people (unlike me! The above is only from memory of a book I read some time ago.) You really don't want ...
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What is the best JavaScript code to create an img element

... in the above code, if the values weren't hard coded). It's also easier to read (from a JS perspective): $('#container').append($('<img>', { src : "/path/to/image.jpg", width : 16, height : 16, alt : "Test Image", title : "Test Image" })); ...
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What linux shell command returns a part of a string? [duplicate]

...irst slash (exactly what I wanted), you can do: cut -d/ -f-1, which can be read as "cut on substrings delimited by /, only return the first one". – ArtOfWarfare Sep 11 '17 at 14:31 ...
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JPG vs. JPEG image formats

...between the two is. I have come across this question , and will certainly read through it, though at the moment I'm slightly out of time. However, from what I saw giving it a quick look, it seems not to distinguish the two extensions. In fact, it seems the file type's name is JPEG and the file ex...
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Monad in plain English? (For the OOP programmer with no FP background)

...s question was the subject of an immensely long blog series, which you can read at Monads — thanks for the great question! In terms that an OOP programmer would understand (without any functional programming background), what is a monad? A monad is an "amplifier" of types that obeys certain ...
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What is the difference between public, private, and protected?

...e debugger functions. They present information about a variable in a human-readable form. These three functions will reveal the protected and private properties of objects with PHP 5. Static class members will not be shown. More resources: The PHP Manual - OOP Properties The PHP Manual - OOP Vi...