大约有 23,000 项符合查询结果（耗时：0.0620秒） [XML]
How do I convert a float number to a whole number in JavaScript?
...ositive - Larger numbers
// x = Number.MAX_SAFE_INTEGER/10 // =900719925474099.1
// value=x x=900719925474099 x=900719925474099.4 x=900719925474099.5
Math.floor(value) // 900719925474099 900719925474099 900719925474099
Math.ceil(value) // 900719925474099 900719925...
How to get the browser to navigate to URL in JavaScript [duplicate]
...|
edited May 11 '16 at 11:40
Ethan
3,96744 gold badges2020 silver badges3939 bronze badges
answered Dec ...
Google Maps API v2: How to make markers clickable?
...
40
the same thing as with markers - you need to register OnInfoWindowClickListenerCallback. There is a method in GoogleMap for that: googleMap...
Unit testing Anti-patterns catalogue
...re
edited Feb 29 '12 at 8:40
community wiki
4 r...
Cannot generate iOS App archive in xcode
...
40 Answers
40
Active
...
How does the bitwise complement operator (~ tilde) work?
...7s_complement
– Sai
Dec 21 '14 at 3:40
1
Isn't that the bitwise NOT operator?
...
Change Active Menu Item on Page Scroll?
...nter ul {
margin: 0 0 0 0;
}
#menu-center ul li a{
padding: 32px 40px;
}
#menu-center ul li {
list-style: none;
margin: 0 0 0 -4px;
display: inline;
}
.active, #menu-center ul li a:hover {
font-family:'Droid Sans', serif;
font-size: 14px;
color: #fff;
...
Get UIScrollView to scroll to the top
...
answered Feb 26 '12 at 3:40
rob mayoffrob mayoff
330k5151 gold badges692692 silver badges738738 bronze badges
...
How to check if hex color is “too black”?
...= 0.2126 * r + 0.7152 * g + 0.0722 * b; // per ITU-R BT.709
if (luma < 40) {
// pick a different colour
}
EDIT
Since May 2014 tinycolor now has a getBrightness() function, albeit using the CCIR601 weighting factors instead of the ITU-R ones above.
EDIT
The resulting luma value range is ...
How to round up to the nearest 10 (or 100 or X)?
...e(0.0322)
[1] 0.04
> roundUpNice(3.22)
[1] 4
> roundUpNice(32.2)
[1] 40
> roundUpNice(42.2)
[1] 50
> roundUpNice(422.2)
[1] 500
[[EDIT]]
If the question is how to round to a specified nearest value (like 10 or 100), then James answer seems most appropriate. My version lets you take an...