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How to escape single quotes within single quoted strings
... first quotation which uses single quotes.
" Start second quotation, using double-quotes.
' Quoted character.
" End second quotation, using double-quotes.
' Start third quotation, using single quotes.
If you do not place any whitespaces between (1) and (2), or between (4) and (5), the shell will i...
How to round up a number to nearest 10?
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floor() will go down.
ceil() will go up.
round() will go to nearest by default.
Divide by 10, do the ceil, then multiply by 10 to reduce the significant digits.
$number = ceil($input / 10) * 10;
Edit: I've been doing it this way fo...
No increment operator (++) in Ruby? [duplicate]
...instance, x++ or x-- will fail to parse. More importantly, ++x or --x will do nothing! In fact, they behave as multiple unary prefix operators: -x == ---x == -----x == ...... To increment a number, simply write x += 1.
Taken from "Things That Newcomers to Ruby Should Know
" (archive, mirror)
That...
How can I remove an element from a list, with lodash?
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As lyyons pointed out in the comments, more idiomatic and lodashy way to do this would be to use _.remove, like this
_.remove(obj.subTopics, {
subTopicId: stToDelete
});
Apart from that, you can pass a predicate function whose result will be used to determine if the current element has to b...
Possible to do a MySQL foreign key to one of two possible tables?
...nstraints to use this feature. Instead, the application or framework must do equivalent work to ensure that the reference is satisfied. That is, the value in the foreign key is present in one of the possible target tables.
Polymorphic Associations are weak with respect to enforcing database consi...
Cleaning up old remote git branches
...it statement to see the result of running it without actually running it.
Docs for git remote prune and git branch.
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Java; String replace (using regular expressions)?
... parameter: str.replaceAll("\\^([0-9]+)", "<sup>\$1</sup>"); I don't get it... :(
– Dan Burzo
Mar 10 '09 at 21:10
2
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AWS: How to disable all services?
I was dorking around with AWS (and related services), hoping that I could stay in the Free Tier, like I do when I'm exploring Google App Engine.
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SOAP or REST for Web Services? [closed]
Is REST a better approach to doing Web Services or is SOAP? Or are they different tools for different problems? Or is it a nuanced issue - that is, is one slightly better in certain arenas than another, etc?
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receiver type *** for instance message is a forward declaration
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If you're trying to use Swift objects in Objective-C, don't forget they have to inherit from NSObject.
– Michal Šrůtek
Feb 20 at 14:16
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