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How to generate random SHA1 hash to use as ID in node.js?
...ost insane parallel computing situations. I know its silly and randomBytes(20) is going to be unique, but its just a confidence we can have because we may not be familiar with internals of random generation of another library.
– Dmitri R117
Sep 5 '17 at 15:13
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Twitter Bootstrap 3: how to use media queries?
...x){}
@media(min-width:768px){}
@media(min-width:992px){}
@media(min-width:1200px){}
Note: FYI, this may be useful for debugging:
<span class="visible-xs">SIZE XS</span>
<span class="visible-sm">SIZE SM</span>
<span class="visible-md">SIZE MD</span>
<span cla...
How can I check whether a radio button is selected with JavaScript?
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answered Sep 14 '09 at 20:37
Mark BiekMark Biek
130k5151 gold badges150150 silver badges194194 bronze badges
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How to disable JavaScript in Chrome Developer Tools?
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20 Answers
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Server.UrlEncode vs. HttpUtility.UrlEncode
...ncode - this thing is really incomprehensible. It encodes:
" " ==> "%20"
"100% true" ==> "100%%20true" (ok, your url is broken now)
"test A.aspx#anchor B" ==> "test%20A.aspx#anchor%20B"
"test A.aspx?hmm#anchor B" ==> "test%20A.aspx?hmm#anchor B" (note the difference with the previous...
What is the difference between parseInt() and Number()?
...type conversion and parseInt performs parsing, e.g.:
// parsing:
parseInt("20px"); // 20
parseInt("10100", 2); // 20
parseInt("2e1"); // 2
// type conversion
Number("20px"); // NaN
Number("2e1"); // 20, exponential notation
Also parseInt will ignore trailing characters ...
ISO time (ISO 8601) in Python
...O 8601:
import datetime
datetime.datetime.now().isoformat()
>>> 2020-03-20T14:28:23.382748
UTC to ISO 8601:
import datetime
datetime.datetime.utcnow().isoformat()
>>> 2020-03-20T01:30:08.180856
Local to ISO 8601 without microsecond:
import datetime
datetime.datetime.now()...
Using Default Arguments in a Function
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edited Feb 6 '12 at 20:46
answered Feb 6 '12 at 20:40
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What is a None value?
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answered Oct 20 '13 at 5:29
DSMDSM
269k5050 gold badges494494 silver badges427427 bronze badges
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OS X: equivalent of Linux's wget
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edited Sep 3 '17 at 20:05
Mark Amery
98.8k4848 gold badges336336 silver badges379379 bronze badges
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