大约有 47,000 项符合查询结果(耗时:0.0525秒) [XML]
Determining whether jQuery has not found any element
...t').length is what you're looking for. (If it finds nothing, this will === 0.) So your conditional statement should probably be:
if($('#id').length) { /* code if found */ } else { /* code if not found */ }
You're getting an object returned from that alert because jQuery (almost) always returns the...
Drawing a line/path on Google Maps
... mPaint.setStrokeWidth(2);
GeoPoint gP1 = new GeoPoint(19240000,-99120000);
GeoPoint gP2 = new GeoPoint(37423157, -122085008);
Point p1 = new Point();
Point p2 = new Point();
Path path = new Path();
Projection projection=mapv.getProjection();...
How to increment a pointer address and pointer's value?
...else?
– felipemaia
Nov 21 '11 at 15:03
@Lundin Hi, is the answer above corrected now? Thanks.
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Dynamically updating plot in matplotlib
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140
Is there a way in which I can update the plot just by adding more point[s] to it...
There a...
How do I wrap text in a UITableViewCell without a custom cell
This is on iPhone 0S 2.0. Answers for 2.1 are fine too, though I am unaware of any differences regarding tables.
10 Answers...
How to remove space between axis & area-plot in ggplot2?
... to expand the scale by 5% on each side for
continuous variables, and by 0.6 units on each side for discrete
variables.
The problem is thus solved by adding expand = c(0,0) to scale_x_continuous and scale_y_continuous. This also removes the need for adding the panel.margin parameter.
The code...
C pointer to array/array of pointers disambiguation
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answered May 13 '09 at 18:37
Mehrdad AfshariMehrdad Afshari
379k8383 gold badges822822 silver badges775775 bronze badges
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Autoreload of modules in IPython [duplicate]
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edited Aug 21 '19 at 15:20
rfho_bdss
13111 silver badge1515 bronze badges
answered May 6 '12 at 17:37
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How to initialize all members of an array to the same value in Swift?
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170
Actually, it's quite simple with Swift. As mentioned in the Apple's doc, you can initialize an a...
npm command to uninstall or prune unused packages in Node.js
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Jan 28 '14 at 21:20
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