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How to subtract date/time in JavaScript? [duplicate]
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You can just substract two date objects.
var d1 = new Date(); //"now"
var d2 = new Date("2011/02/01") // some date
var diff = Math.abs(d1-d2); // difference in milliseconds
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Change the name of a key in dictionary
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if you want to change all the keys:
d = {'x':1, 'y':2, 'z':3}
d1 = {'x':'a', 'y':'b', 'z':'c'}
In [10]: dict((d1[key], value) for (key, value) in d.items())
Out[10]: {'a': 1, 'b': 2, 'c': 3}
if you want to change single key:
You can go with any of the above suggestion.
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How do I make python wait for a pressed key?
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edited Jan 29 at 11:07
U3.1415926
52888 silver badges2525 bronze badges
answered Jul 16 '09 at 1:48
r...
How do you join on the same table, twice, in mysql?
... the domain table twice in the same query and joining the results.
Select d1.dom_url, d2.dom_id from
review r, domain d1, domain d2
where d1.dom_id = r.rev_dom_from
and d2.dom_id = r.rev_dom_for
If you are still stuck, please be more specific with exactly it is that you don't understand.
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Find the files existing in one directory but not in the other [closed]
...ript works fast.
#!/usr/bin/env python3
import os, sys
def compare_dirs(d1: "old directory name", d2: "new directory name"):
def print_local(a, msg):
print('DIR ' if a[2] else 'FILE', a[1], msg)
# ensure validity
for d in [d1,d2]:
if not os.path.isdir(d):
r...
Matplotlib transparent line plots
...s your answer needing a correction or his comment?
– U3.1415926
Sep 25 '18 at 12:04
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configure Git to accept a particular self-signed server certificate for a particular https remote
...ey5Oyn3qwP4q+geQqOhRtaPqdH6ABnqUYHcGYB77GcStQxnqnOZ
MJwIaIZqlz+59taB6U2lG30u3cZ1FITuz+fWXdfELKPWPjDoHkwumkz3zcCVrrtI
ktRzk7AeazHcLEwkUjB5Rm75N9+dOo6Ay89JCcPKb+tNqOszY10y6U3kX3uiSzrJ
ejSq/tRyvMFT1FlJ8tKoZBWbkThevMhx7jk5qsoCpLPmPoYCEoLEtpMYiQnDZgUc
TNoL1GjoDrjgmSen4QN5QZEGTOe/dsv1sGxWC+Tv/VwUl2GqVtKPZ...
What does the plus sign do in '+new Date'
...d the time difference between two Date's, you simply do as following;
var d1 = new Date("2000/01/01 00:00:00");
var d2 = new Date("2000/01/01 00:00:01"); //one second later
var t = d2 - d1; //will be 1000 (msec) = 1 sec
typeof t; // "number"
now if you check type of d1-0, it is also a number:...
How to find difference between two Joda-Time DateTimes in minutes
...you the difference between two DateTime objects in milliseconds:
DateTime d1 = new DateTime();
DateTime d2 = new DateTime();
long diffInMillis = d2.getMillis() - d1.getMillis();
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How do I get the number of days between two dates in JavaScript?
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Miles (d2 - d1) / N 31 0.9583333 1.0416666 Incorrect
some Math.floor((d2 - d1) / N) 31 0 1 Incorrect
fuentesjr Math.round((d2 - d1) / N) 31 1 1 Correct
toloco ...