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Big O, how do you calculate/approximate it?
Most people with a degree in CS will certainly know what Big O stands for .
It helps us to measure how well an algorithm scales.
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How to handle Back button with in the dialog?
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I know I'm too late, but thought to point to something. This additionally will also get triggered when the user clicks somewhere outside the dialog. So if you need to only override the back press option then this is not what you...
Selecting only numeric columns from a data frame
...de
## nums <- sapply(x, is.numeric)
For a more idiomatic modern R I'd now recommend
x[ , purrr::map_lgl(x, is.numeric)]
Less codey, less reflecting R's particular quirks, and more straightforward, and robust to use on database-back-ended tibbles:
dplyr::select_if(x, is.numeric)
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Why is setTimeout(fn, 0) sometimes useful?
...(say takes 3 min)
Prints the results of calculation into the result div.
Now, your users start testing this, click "do something" button, and the page sits there doing seemingly nothing for 3 minutes, they get restless, click the button again, wait 1 min, nothing happens, click button again...
T...
Android : difference between invisible and gone?
...e idea with some pictures.
Assume that you have three buttons, like below
Now if you set visibility of Button Two as invisible (View.INVISIBLE), then output will be
And when you set visibility of Button Two as gone (View.GONE) then output will be
Hope this will clear your doubts.
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What does O(log n) mean exactly?
...propriate spot in a new, empty phone book.
For the below examples, we're now at the printer's office. Phone books are waiting to be mailed to each resident or business, and there's a sticker on each phone book identifying where it should be mailed to. Every person or business gets one phone book.
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Canvas width and height in HTML5
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Thx much appreciated. I see now what CSS is doing... it treats the canvas 'like' a image, scaling an image is obviously not as good as 're-drawing' it!
– EnglishAdam
Sep 11 '14 at 18:32
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How to add and get Header values in WebApi
...= null)
{
return NotFound();
}
return Ok(product);
}
Now we can send the request from page using JQuery:
$.ajax({
url: 'api/products/10',
type: 'GET',
headers: { 'username': 'test','password':'123' },
success: function (data) {
alert(data);
},
f...
Run ssh and immediately execute command [duplicate]
...tory will be cleared, except for the new command on a fresh login. Do you know why that happens and how you can prevent that? I just noticed that after I commented out the line in .bashrc the full history is now available.
– Andy
Jul 22 '16 at 6:19
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Close file without quitting VIM application?
...artin, to completely delete the buffer, use :bw
– sebnow
Dec 2 '10 at 11:14
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