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Format JavaScript date as yyyy-mm-dd
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Where yourDate is your date object.
Edit: @exbuddha wrote this to handle time zone in the comments:
const offset = yourDate.getTimezoneOffset()
yourDate = new Date(yourDate.getTime() + (offset*60*1000))
return yourDate.toISOString().split('T')[0]
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If strings are immutable in .NET, then why does Substring take O(n) time?
...e been designed such that string.Substring() takes O( substring.Length ) time, instead of O(1) ?
5 Answers
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How do I plot in real-time in a while loop using matplotlib?
I am trying to plot some data from a camera in real time using OpenCV. However, the real-time plotting (using matplotlib) doesn't seem to be working.
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How can I validate a string to only allow alphanumeric characters in it?
...at I will never remember the syntax. Even if I study it, there will come a time soon when it's all forgotten again.
– Sentinel
Jan 14 '15 at 17:26
1
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Vim indent xml file
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@hakunami i wish i could upvote you 1000 times for simplifying that process
– niken
Jul 16 '15 at 15:07
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Asynchronous method call in Python?
...an use enhanced generators for async functions.
import asyncio
import datetime
Enhanced generator syntax:
@asyncio.coroutine
def display_date(loop):
end_time = loop.time() + 5.0
while True:
print(datetime.datetime.now())
if (loop.time() + 1.0) >= end_time:
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Error “initializer element is not constant” when trying to initialize variable with const
...nst char * str2 = str1;
In fact, a "const char *" string is not a compile-time constant, so it can't be an initializer. But a "const char * const" string is a compile-time constant, it should be able to be an initializer. I think this is a small drawback of CLang.
A function name is of course a co...
How to check if a line is blank using regex
... @adamlogan yeah, from memory, I think I wanted to do it at the time, but I didn't have enough reputation to comment on someone else's post, so had to do it like this.
– John Henry
Jun 27 '18 at 1:41
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Declaring an unsigned int in Java
...gned can break CRC calculations etc. It's not a show stopper, just wasted time.
– Lorne K
Aug 25 '16 at 15:21
3
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Bash Script: count unique lines in file
...t file:
$ for i in {1..100000}; do echo $RANDOM; done > random.txt
$ time sort random.txt | uniq | wc -l
31175
real 0m1.193s
user 0m0.701s
sys 0m0.388s
$ time awk '!seen[$0]++' random.txt | wc -l
31175
real 0m0.675s
user 0m0.108s
sys 0m0.171s
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