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PHP function to get the subdomain of a URL

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What is the difference between a regular string and a verbatim string?

...gests this change. Do any CLR gurus know if verbatim strings are processed more efficiently since escape characters can be ignored? – Matt Peterson Jul 22 '10 at 18:25 9 ...
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How do I fetch only one branch of a remote Git repository?

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Convert JS date time to MySQL datetime

...e hate using prototypes this way, but if you are going * to apply this to more than one Date object, having it as a prototype * makes sense. **/ Date.prototype.toMysqlFormat = function() { return this.getUTCFullYear() + "-" + twoDigits(1 + this.getUTCMonth()) + "-" + twoDigits(this.getUTCDate...
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Rails: How can I set default values in ActiveRecord?

...rue if self.bool_field.nil? See Paul Russell's comment on this answer for more details If you're only selecting a subset of columns for a model (ie; using select in a query like Person.select(:firstname, :lastname).all) you will get a MissingAttributeError if your init method accesses a column that...
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How to sort an array in descending order in Ruby

... ( 0.242340) New results running the above code using Ruby 2.2.1 on a more recent Macbook Pro. Again, the exact numbers aren't important, it's their relationships: Running Ruby 2.2.1 n=500 user system total real sort 0.650000 0.000...
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Convert two lists into a dictionary

...eated. I would expect all of them to be less performant, and certainly not more-so. Performance review: In 64 bit Python 3.8.2 provided by Nix, on Ubuntu 16.04, ordered from fastest to slowest: >>> min(timeit.repeat(lambda: dict(zip(keys, values)))) 0.6695233230129816 >>> min(ti...
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Chrome can't load web worker

... like this. At least, not without an additional workaround. So you'll need more tampering for a multi-file worker. – SlugFiller Apr 18 '18 at 4:20 1 ...
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How to check a radio button with jQuery?

... call click() or change() on the radio button afterwards. See comments for more info. share | improve this answer | follow | ...
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How to group dataframe rows into list in pandas groupby?

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