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How to Copy Contents of One Canvas to Another Canvas Locally
I'd like to copy ALL contents of one canvas and transfer them to another all on the client-side. I would think that I would use the canvas.toDataURL() and context.drawImage() method to implement this but I am running into a few issues.
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Does Python have a ternary conditional operator?
...s ignored, or else when b is evaluated and returned but a is ignored.
This allows short-circuiting because when condition is true only a is evaluated and b is not evaluated at all, but when condition is false only b is evaluated and a is not evaluated at all.
For example:
>>> 'true' if True...
Git: Create a branch from unstaged/uncommitted changes on master
...tatus still show your local changes, although you are on master.
If you really want to discard the local changes, you have to force the checkout with -f.
git checkout master -f
Since your changes were never committed, you'd lose them.
Try to get back to your branch, commit your changes, then ch...
Will code in a Finally statement fire if I return a value in a Try block?
...r a friend and say that he was using a return statement inside of a try-finally block. Does the code in the Finally section still fire even though the rest of the try block doesn't?
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Set scroll position
...'m trying to set the scroll position on a page so the scroller is scrolled all the way to the top.
4 Answers
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Best way to remove from NSMutableArray while iterating?
.... That may be true (although what about the memory and processing cost of allocating a new array, and discarding the old one?) but even if it's faster it may not be as big a deal as it would be for a naive implementation, because NSArrays do not behave like "normal" arrays. They talk the talk but ...
How to linebreak an svg text within javascript?
...extArea element, with automatic word wrapping, but it's not implemented in all browsers. SVG 2 does not plan on implementing textArea, but it does have auto-wrapped text.
However, given that you already know where your linebreaks should occur, you can break your text into multiple <tspan>s, e...
Group by multiple columns in dplyr, using string vector input
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Does the call to one_of() do anything here? I think it is redundant in this context, as the expression is wrapped in a call to vars().
– knowah
Aug 15 '19 at 14:13
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Google Chrome Printing Page Breaks
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I've used the following approach successfully in all major browsers including Chrome:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=UTF-8" />
<title>Paginated HTML</title>
<sty...
Should I use the datetime or timestamp data type in MySQL?
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Timestamps in MySQL are generally used to track changes to records, and are often updated every time the record is changed. If you want to store a specific value you should use a datetime field.
If you meant that you want to decide between using a UNIX ...