大约有 30,000 项符合查询结果(耗时:0.0473秒) [XML]
window.onload vs
...OMContentLoaded which fires earlier, but it is not supported by IE (at the time of writing this answer). I'd recommend using a javascript library which supports a cross browser DOMContentLoaded feature, or finding a well written function you can use. jQuery's $(document).ready(), is a good example...
Elegant method to generate array of random dates within two dates
...t this it?
function randomDate(start, end) {
return new Date(start.getTime() + Math.random() * (end.getTime() - start.getTime()));
}
randomDate(new Date(2012, 0, 1), new Date())
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Place cursor at the end of text in EditText
...ueue. This is because android waits to do some layout stuff until a better time by posting so if you try to setSelection before the system is finished it will undo your work.
– MinceMan
Dec 7 '13 at 18:16
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Finding all objects that have a given property inside a collection [duplicate]
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@David: +1 for argument (2). Seen this a thousand times: import extra lib, extra jar, extra repo for one single class of 20 lines. Keep a sense of proportion!
– digitalarbeiter
Mar 10 '10 at 12:22
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Remove duplicate values from JS array [duplicate]
..., this algorithm is not particularly efficient for large arrays (quadratic time).
Hashtables to the rescue
function uniq(a) {
var seen = {};
return a.filter(function(item) {
return seen.hasOwnProperty(item) ? false : (seen[item] = true);
});
}
This is how it's usually done. T...
What happens when a duplicate key is put into a HashMap?
If I pass the same key multiple times to HashMap ’s put method, what happens to the original value? And what if even the value repeats? I didn’t find any documentation on this.
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What's the idiomatic syntax for prepending to a short python list?
...sert(0, x) form is the most common.
Whenever you see it though, it may be time to consider using a collections.deque instead of a list.
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jQuery: Get height of hidden element in jQuery
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I've actually resorted to a bit of trickery to deal with this at times. I developed a jQuery scrollbar widget where I encountered the problem that I don't know ahead of time if the scrollable content is a part of a hidden piece of markup or not. Here's what I did:
// try to grab the hei...
Why doesn't C++ have a garbage collector?
...troustrup has said that C++ will have a garbage collector at some point in time.
16 Answers
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What's the difference between console.dir and console.log?
...a navigable tree.
In Chrome, log already prints out a tree -- most of the time. However, Chrome's log still stringifies certain classes of objects, even if they have properties. Perhaps the clearest example of a difference is a regular expression:
> console.log(/foo/);
/foo/
> console.dir(/...
