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How to draw polygons on an HTML5 canvas?

...dle top of the polygon rather than the middle right, flip the sin and cos calls and change Ycenter + to Ycenter - on both places (leaving it as a sum rather than a difference of the values results in it starting with a point at the bottom of the resultant shape). I am not a clever man when it comes...
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How to check if a file contains a specific string using Bash

...xpected results. It's safer to always use fgrep (or grep -F) (unless you really need a regex, in which case egrep (or grep -E) is probably the best choice) – Walter Tross Apr 27 '18 at 13:25 ...
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java.util.Date vs java.sql.Date

...ns, you've hit my favorite pet peeve with JDBC: Date class handling. Basically databases usually support at least three forms of datetime fields which are date, time and timestamp. Each of these have a corresponding class in JDBC and each of them extend java.util.Date. Quick semantics of each of th...
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Sass negative variable value?

... Automatically tried this approach - seems not to be working when using in calc function. Edit: Seems like you don't need to use parentheses when using calc, but you do need to interpolate stackoverflow.com/questions/17982111/… ...
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How to replace four spaces with a tab in Sublime Text 2?

... While all answers are correct this one is the easiest one! Thanks – Mohsen Mar 5 '12 at 23:39 1 ...
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How to make blinking/flashing text with CSS 3

... a bit longer than the timer (and timers aren't reliable anyway) and eventually you'll likely end up with unbounded queue of animations queued up on the element. The correct approach would be to do without the timer and "recursively" call blinker as the completion callback to the .fadeIn call. ...
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Is there a common Java utility to break a list into batches?

...ecutive sublists of a list, each of the same size (the final list may be smaller). For example, partitioning a list containing [a, b, c, d, e] with a partition size of 3 yields [[a, b, c], [d, e]] -- an outer list containing two inner lists of three and two elements, all in the original order. ...
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How to get a number of random elements from an array?

... @Derek朕會功夫 Ah, clever, that works much better for small samples from large ranges indeed. Especially with using an ES6 Set (which wasn't available in '13 :-/) – Bergi Aug 8 '17 at 0:22 ...
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What are the best Haskell libraries to operationalize a program? [closed]

...he types of work the program is doing and how long that work is taking. Ideally, the collected metrics are available in a format that's compatible with commonly-used monitoring tools like Ganglia, or can be so munged. I'm not aware of any standardized reporting tools, however, extracting reports f...
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How is location accuracy measured in Android?

... that radius of the measured point in meters. Assuming that errors are normally distributed (which, as the docs say, is not necessarily true), that means that this is one standard deviation. For example, if Location.getAccuracy returns 10, then there's a 68% chance the true location of the device is...