大约有 45,000 项符合查询结果（耗时：0.0790秒） [XML]
Javascript: formatting a rounded number to N decimals
...number, something like:
var s = number.toString();
if (s.indexOf('.') == -1) s += '.';
while (s.length < s.indexOf('.') + 4) s += '0';
(Note that this assumes that the regional settings of the client uses period as decimal separator, the code needs some more work to function for other settings...
How to sort a collection by date in MongoDB?
...
10 Answers
10
Active
...
MySQL's now() +1 day
...
461
You can use:
NOW() + INTERVAL 1 DAY
If you are only interested in the date, not the date and ...
Grep characters before and after match?
...
187
3 characters before and 4 characters after
$> echo "some123_string_and_another" | grep -o ...
Scala Doubles, and Precision
...e or round a Double? At one point in my code I would like a number like: 1.23456789 to be rounded to 1.23
12 Answers
...
Setting environment variables via launchd.conf no longer works in OS X Yosemite/El Capitan/macOS Sie
...
161
Create an environment.plist file in ~/Library/LaunchAgents/ with this content:
<?xml versi...
Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”
...
189
See https://polarssl.org/kb/cryptography/asn1-key-structures-in-der-and-pem (search the page f...
How to convert an array of strings to an array of floats in numpy?
...
181
Well, if you're reading the data in as a list, just do np.array(map(float, list_of_strings)) (...
Safely limiting Ansible playbooks to a single machine?
...
13 Answers
13
Active
...
Insert into a MySQL table or update if exists
...
11 Answers
11
Active
...