大约有 21,000 项符合查询结果（耗时：0.0299秒） [XML]
Remove insignificant trailing zeros from a number?
...ork on this has been included as prettyFloat.js (MIT Licensed) on GitHub: https://github.com/dperish/prettyFloat.js
Usage Examples:
prettyFloat(1.111001, 3) // "1.111"
prettyFloat(1.111001, 4) // "1.111"
prettyFloat(1.1111001, 5) // "1.1111"
prettyFloat(1234.5678, 2) // "1234.57"
prettyFloat(12...
Is there a minlength validation attribute in HTML5?
...re now enabled in recent versions of all modern browsers. For details, see https://caniuse.com/#search=minlength.
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Convert Rows to columns using 'Pivot' in SQL Server
..., 212),
(105, 2, 78),
(109, 2, 97),
(105, 3, 60),
(102, 3, 123),
(101, 3, 220),
(109, 3, 87);
If your values are known, then you will hard-code the query:
select *
from
(
select store, week, xCount
from yt
) src
pivot
(
sum(xcount)
for week in ([1], [2], [3])
) pi...
How do you check that a number is NaN in JavaScript?
...idn't realize this until @allsyed commented, but this is in the ECMA spec: https://tc39.github.io/ecma262/#sec-isnan-number
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How do you check if a certain index exists in a table?
...s syntax is available since SQL Server 2016. Documentation for IF EXISTS:
https://blogs.msdn.microsoft.com/sqlserverstorageengine/2015/11/03/drop-if-exists-new-thing-in-sql-server-2016/
In case you deal with a primery key instead, then use this:
ALTER TABLE [TableName] DROP CONSTRAINT IF EXISTS [...
What's your favorite “programmer” cartoon?
...
Oh! There can be only one:
It's sooo funny, because it's true :)
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edited Feb 8 '17 at 14:08
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Ruby ampersand colon shortcut [duplicate]
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Fun to see the [*3..7] syntax. I didn't realize you could splat like that!
– Ben Coppock
Jul 11 '19 at 4:54
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How do I find the maximum of 2 numbers?
...
Use the builtin function max.
Example:
max(2, 4) returns 4.
Just for giggles, there's a min as well...should you need it. :P
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Ruby array to string conversion
...
I'll join the fun with:
['12','34','35','231'].join(', ')
EDIT:
"'#{['12','34','35','231'].join("', '")}'"
Some string interpolation to add the first and last single quote :P
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How to sort ArrayList in decreasing order?
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Java 8
well doing this in java 8 is so much fun and easier
Collections.sort(variants,(a,b)->a.compareTo(b));
Collections.reverse(variants);
Lambda expressions rock here!!!
in case you needed a more than one line logic for comparing a and b you could write it li...