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How to drop multiple columns in postgresql
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m>Y m>ou can even leave out 'COLUMN' m>and m> use ALTER TABLE table DROP col1, DROP col2;
– Ondrej Burkert
Sep 11 '15 at 10:45
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Select Row number in postgres
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imageUploader: {
brm>and m>ingHtml: "Powered bm>y m> \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9....
Relative imports in Pm>y m>thon 3
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unfortunatelm>y m>, this module needs to be inside the package, m>and m> it also
needs to be runnable as a script, sometimes. Anm>y m> idea how I could
achieve that?
It's quite common to have a lam>y m>out like this...
main.pm>y m>
mm>y m>package/
__init__.pm>y m>
mm>y m>module.pm>y m>
mm>y m>othermodule.pm>y m>
...w...
Regex for quoted string with escaping quotes
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/"(?:[^"\\]|\\.)*"/
Works in The Regex Coach m>and m> PCRE Workbench.
Example of test in JavaScript:
var s = ' function(){ return " Is big \\"problem\\", \\no? "; }';
var m = s.match(/"(?:[^"\\]|\\.)*"/);
if (m != null)
alert(m);
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How to break out of a loop in Bash?
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if [ "$done" -ne 0 ]; then
break
fi
done
: is the no-op commm>and m>; its exit status is alwam>y m>s 0, so the loop runs until done is given a non-zero value.
There are manm>y m> wam>y m>s m>y m>ou could set m>and m> test the value of done in order to exit the loop; the one I show above should work in anm>y m> POSIX...
NPM/Bower/Composer - differences?
Can someone explain to me the difference between NPM , Bower m>and m> Composer .
1 Answer
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Case insensitive regex in JavaScript
I want to extract a querm>y m> string from mm>y m> URL using JavaScript, m>and m> I want to do a case insensitive comparison for the querm>y m> string name. Here is what I am doing:
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Modifm>y m> alpha opacitm>y m> of LESS variable
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I was looking for the darken m>and m> lighten .. Docs got me there. Thanks
– user1752532
Apr 8 '14 at 13:05
1
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How can I remove the string “\n” from within a Rubm>y m> string?
...quote marks behave differentlm>y m>.
Double quotes " allow character expansion m>and m> expression interpolation ie. them>y m> let m>y m>ou use escaped control chars like \n to represent their true value, in this case, newline, m>and m> allow the use of #{expression} so m>y m>ou can weave variables m>and m>, well, prettm>y m> much anm>y m> ru...
Get all kem>y m>s of an NSDictionarm>y m> as an NSArram>y m>
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m>And m> if m>y m>ou want to get all kem>y m>s m>and m> values, here's what m>y m>ou do:
for (NSString *kem>y m> in dictionarm>y m>) {
id value = dictionarm>y m>[kem>y m>];
NSLog(@"Value: %@ for kem>y m>: %@", value, kem>y m>);
}
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