大约有 3,516 项符合查询结果（耗时：0.0190秒） [XML]
cannot convert data (type interface {}) to type string: need type assertion
...alue type, we have to do it individually:
// var items []i
for _, item := range items {
value, ok := item.(T)
dosomethingWith(value)
}
Performance
As for performance, it can be slower than direct access to the actual value as show in this stackoverflow answer.
...
Why can't I use switch statement on a String?
...if-else is preferable as it allows you to handle str values outside of the range RED,BLUE without needing to catch an exception from valueOf or manually check for a match against the name of each enumeration type which just adds unnecessary overhead. In my experience it has only made sense to use va...
Remove the bottom divider of an android ListView
... with 4.4.2. I can run literally the same app across my many test devices (ranging from 2.3.7 all the way up until 4.4.2) and KitKat is the only one where this seems to have no effect... Any ideas? I'm not adding a footer or header to my ListView and I've reproduced this on two devices (Nexus 5 and ...
How to get highcharts dates in the x axis?
...charts will automatically try to find the best format for the current zoom-range. This is done if the xAxis has the type 'datetime'. Next the unit of the current zoom is calculated, it could be one of:
second
minute
hour
day
week
month
year
This unit is then used find a format for the axis label...
What does a just-in-time (JIT) compiler do?
...o define a generic method which would be capable of producing an unbounded range of types, each of would require different machine code, but only have the JIT generate code for types which are actually produced. By contrast, in C++ it's necessary that the compiler generate code for all types a prog...
Should try…catch go inside or outside a loop?
...ry/catch structures are placed. Internally, they are implemented as a code-range table in a structure that is created when the method is called. While the method is executing, the try/catch structures are completely out of the picture unless a throw occurs, then the location of the error is compared...
JavaScript Chart Library
...rted in pre-Honeycomb Android. If being able to view the charts on a broad range of current Android devices is a requirement, you'd have to pick a Canvas-based solution. This article on Sencha Touch Charts goes into more details on mobile charting in general, and why Sencha Touch went the Canvas rou...
Should image size be defined in the img tag height/width attributes or in CSS? [duplicate]
...approach, as you may get some reflow, but it allows you to support a broad range of screen sizes, so the benefit usually outweighs the negative.
Finally, there are times when you may not know the image size ahead of time (image src might be loaded dynamically, or can change during the lifetime of t...
Colspan all columns
...
I'm a fan of colspan="42" to span the entire range. Obviously this is a problem for >42 columns, but it's one of the few magic numbers I approve of.
– Martin Carney
Jan 14 '13 at 19:43
...
The remote end hung up unexpectedly while git cloning
...tal: bad numeric config value '100000000000' for 'http.postbuffer': out of range", but setting the config value doesn't help in my case.
– Karl Richter
Jan 29 '17 at 7:53
...