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Storing Data in MySQL as JSON
...enever they are inserted or updated, with an invalid document producing an error. JSON documents are normalized on creation, and can be compared using most comparison operators such as =, <, <=, >, >=, <>, !=, and <=>; for information about supported operators as well as prec...
Post-increment and pre-increment within a 'for' loop produce same output [duplicate]
...n the way their world works.
At this point, most candidates realize their error and find the correct answer. But I had one who insisted his original answer was right, then changed the way he translated the for() to the while(). It made for a fascinating interview, but we didn't make an offer!
Ho...
Why is f(i = -1, i = -1) undefined behavior?
... compilation to fail. Hence changing of a constant could cause compilation errors in some other place. Which is, IMHO, unfortunate. But it is certainly good to restrict such things to the unavoidable.
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What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
...eral member functions that are implemented by the moc; if you get compiler errors along the lines of "undefined reference to vtable for LcdNumber", you have probably forgotten to run the moc or to include the moc output in the link command.
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What are the implications of using “!important” in CSS? [duplicate]
...es
Many libraries and frameworks come with utility classes like .hidden, .error, or .clearfix. They serve a single purpose, and often apply very few, but very important, rules. (display: none for a .hidden class, for example). These should override whatever other styles are currently on the element...
Is it worth hashing passwords on the client side
... "noise bits" each time, the hand shake is performed.
Edit 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...
Why is Maven downloading the maven-metadata.xml every time?
Below is the error I usually get when my internet connection is flanky when trying to build a web application with maven.
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Get real path from URI, Android KitKat new storage access framework [duplicate]
...ich works for all cases so that people don't have to depend upon trial and error way.
– abggcv
Jan 31 '18 at 9:49
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Why don't self-closing script elements work?
...s what you get when authors don't care for the rules, because browsers use error correction. A missing </p> end tag on the other hand is actually part of the definition of HTML!
– Mr Lister
Dec 17 '15 at 11:36
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Set environment variables on Mac OS X Lion
...g has an incorrect semicolon after ".dtd>" Maybe it is a copy and paste error, but I had to remove it to get Xcode to read the file. Second, you may need to log out and back in for the effects to take place.
– David V
Sep 21 '11 at 21:04
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