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“Diff” an image using ImageMagick
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My own favorites are these two:
compare image1 image2 -compose src diff.png
compare image1 image2 -compose src diff.pdf
The only difference between the 2 commands above: the first one shows the visual difference between the two images as a PNG file, the second one as...
Free space in a CMD shell
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114
If you run "dir c:\", the last line will give you the free disk space.
Edit:
Better solution:...
Tools to search for strings inside files without indexing [closed]
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61
Original Answer
Windows Grep does this really well.
Edit: Windows Grep is no longer being main...
Prevent automatic browser scroll on refresh
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16
This solution is no longer recommended due to changes in browser behavior. See other answers.
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What limits does scala place on the “acceptable complexity” of inferred types?
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1 Answer
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Active
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Replace a value if null or undefined in JavaScript
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Here’s the JavaScript equivalent:
var i = null;
var j = i || 10; //j is now 10
Note that the logical operator || does not return a boolean value but the first value that can be converted to true.
Additionally use an array of objects instead of one single object:
var options = {
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MySQL error code: 1175 during UPDATE in MySQL Workbench
I'm trying to update the column visited to give it the value 1. I use MySQL workbench, and I'm writing the statement in the SQL editor from inside the workbench. I'm writing the following command:
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how to write setTimeout with params by Coffeescript
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214
I think it's a useful convention for callbacks to come as the last argument to a function. This...