大约有 40,000 项符合查询结果（耗时：0.0582秒） [XML]
Dump a NumPy array into a csv file
... you can also change the format of each figure with the fmt keyword. default is '%.18e', this can be hard to read, you can use '%.3e' so only 3 decimals are shown.
– Andrea Zonca
May 22 '11 at 17:25
...
How do I use .toLocaleTimeString() without displaying seconds?
... every browser in use.
Creating your own, unambiguous format isn't difficult using Date methods. For example:
function formatTimeHHMMA(d) {
function z(n){return (n<10?'0':'')+n}
var h = d.getHours();
return (h%12 || 12) + ':' + z(d.getMinutes()) + ' ' + (h<12? 'AM' :'PM');
}
...
How to pull request a wiki page on GitHub?
...ew "origin" git remote rm origin and git remote add origin git@github.com:<YOUR_USERNAME>/Taffy-Wiki.git
Make your proposed changes locally, then push them to your github account: git push -u origin master ('-u origin master' only required the first time; afterwards just do git push)
Su...
How to handle back button in activity
...
For both hardware device back button and soft home (back) button e.g. " <- " this is what works for me. (*Note I have an app bar / toolbar in the activity)
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
...
How to get GET (query string) variables in Express.js on Node.js?
...d; // $_GET["id"]
Otherwise, in NodeJS, you can access req.url and the builtin url module to url.parse it manually:
var url = require('url');
var url_parts = url.parse(request.url, true);
var query = url_parts.query;
share...
Moving decimal places over in a double
... x, whereas the 0.01 in the second has a fixed round error.
for(int i=0;i<200;i++) {
double d1 = (double) i / 100;
double d2 = i * 0.01;
if (d1 != d2)
System.out.println(d1 + " != "+d2);
}
prints
0.35 != 0.35000000000000003
0.41 != 0.41000000000000003
0.47 != 0.47000000000...
Regular Expressions and negating a whole character group [duplicate]
...x problems, like matching delimited text where the delimiters consist of multiple characters (like HTML, as Luke commented below). For the problem described in the question, it's overkill.
For anyone who's interested, I tested with a large chunk of Lorem Ipsum text, counting the number of lines th...
SQL Server loop - how do I loop through a set of records
...ise to look for set operations first.
select top 1000 TableID
into #ControlTable
from dbo.table
where StatusID = 7
declare @TableID int
while exists (select * from #ControlTable)
begin
select top 1 @TableID = TableID
from #ControlTable
order by TableID asc
-- Do something with ...
jQuery 'input' event
...vent", I had no idea it was an original JS event. Same here, the first results are usually from SO, which I consider mostly as de facto answers/official sources of information.
– silkfire
Jun 29 '13 at 20:28
...
Create a string of variable length, filled with a repeated character
...
new repeat function built into String.prototype handles this now (ES6+)
– AlexMA
Oct 18 '16 at 18:05
...