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How to extend an existing JavaScript array with another array, without creating a new array
...ith a stack overflow error if array b is too long (trouble starts at about 100,000 elements, depending on the browser).
If you cannot guarantee that b is short enough, you should use a standard loop-based technique described in the other answer.
...
Is object empty? [duplicate]
...ct with 8 keys
0.000565
0.000538
0.000647
0.00159
Testing for Object with 100 keys
0.003718
0.00243
0.002535
0.01381
Testing for Object with 1000 keys
0.0337
0.0193
0.0194
0.1337
Note that if your typical use case tests a non empty object with few keys, and rarely do you get to test empty objects...
Map function in MATLAB?
...) x^2, 1:10)
y =
1 4 9 16 25 36 49 64 81 100
There are two other built-in functions that behave similarly: cellfun (which operates on elements of cell arrays) and structfun (which operates on each field of a structure).
However, these functions are often not nece...
How can I merge two hashes without overwritten duplicate keys in Ruby?
...hash. Here's the pure Ruby solution without Rails:
options = { "a" => 100, "b" => 200 }
defaults = { "b" => 254, "c" => 300 }
options.merge!(defaults.select{ |k,_| not options.has_key? k })
# output
# => {"a"=>100, "b"=>200, "c"=>300}
Or if the key is present, but cont...
Remove large .pack file created by git
... even fancier options (see docs) like these:
Remove all files bigger than 100M from history:
java -jar bfg.jar --strip-blobs-bigger-than 100M some-big-repo.git
Important!
When running BFG, be careful that both YOUR_FILE_NAME and YOUR_FOLDER_NAME are indeed just file/folder names. They're not ...
How can I position my div at the bottom of its container?
...ember that you can just include a wrapper div inside of the container with 100% height, and add position:relative to that instead.
– Jack Shepherd
Aug 17 '11 at 17:16
...
How to detect the swipe left or Right in Android?
...eDetector implements View.OnTouchListener{
private int min_distance = 100;
private float downX, downY, upX, upY;
private View v;
private onSwipeEvent swipeEventListener;
public SwipeDetector(View v){
this.v=v;
v.setOnTouchListener(this);
}
public voi...
Has Facebook sharer.php changed to no longer accept detailed parameters?
...
I review your url in use:
https://www.facebook.com/sharer/sharer.php?s=100&p[title]=EXAMPLE&p[summary]=EXAMPLE&p[url]=EXAMPLE&p[images][0]=EXAMPLE
and see this differences:
The sharer URL not is same.
The strings are in different order. ( Do not know if this affects ).
I us...
When should an IllegalArgumentException be thrown?
...ns; there's no point in catching them, so that's perfectly fine.
It's not 100% clear from your example which case this example is in your code, though.
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How can I make a div stick to the top of the screen once it's been scrolled to?
... {
background-color: #c0c0c0;
position:fixed;
top:0;
width:100%;
z-index:100;
}
Edit: You should have the element with position absolute, once the scroll offset has reached the element, it should be changed to fixed, and the top position should be set to zero.
You can detect t...