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How do I get the application exit code from a Windows command line?
I am running a program and want to see what its return code is (since it returns different codes based on different errors).
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Merge Images Side by Side(Horizontally)
...ide-by-side allowing you to adjust spacing between each image (-geometry), and the general layout (-tile).
montage [0-5].png -tile 5x1 -geometry +0+0 out.png
Other examples can be found on Montage Usage page
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pytest: assert almost equal
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@Mr Kriss And even for dicts: assert {'a': 0.1+0.2} == pytest.approx({'a': 0.3})
– Antony Hatchkins
Apr 17 '17 at 18:56
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Ruby Arrays: select(), collect(), and map()
..., but a Hash. You can also use select here, but the block is given the key and value in this case:
irb(main):001:0> h = {:sku=>"507772-B21", :desc=>"HP 1TB 3G SATA 7.2K RPM LFF (3 .", :qty=>"", :qty2=>"1", :price=>"5,204.34 P"}
irb(main):002:0> h.select { |key, value| !value.em...
Using :after to clear floating elements
I have a list and the li's have a float:left; . The contents after the <ul> should be aligned correctly. Therefore i can build the following:
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How do I copy the contents of one stream to another?
...s the best way to copy the contents of one stream to another? Is there a standard utility method for this?
13 Answers
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How to read the mode field of git-ls-tree's output
...digits show file type, the third one is about set-uid/set-gid/sticky bits, and you know the last three.
Here is how man 2 stat documents it on my GNU/Linux system:
The following flags are defined for the st_mode field:
S_IFMT 0170000 bit mask for the file type bit fields
S_...
Why are nested weights bad for performance? Alternatives?
...easurements
increase exponentially.
It's better to use RelativeLayouts and adjust your view according to the places of other views without using specific dpi values.
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css中@media screen and (-webkit-min-device-pixel-ratio:0)解析 - 更多技...
css中@media screen and (-webkit-min-device-pixel-ratio:0)解析@media screen and (-webkit-min-device-pixel-ratio:0) {.down_info caption h5{height:60px; line-height:60px;}}Webkit内核浏览...
@media screen and (-webkit-min-device-pixel-ratio:0) {
.down_info caption h5{height:60px; line-height:60...
Deleting array elements in JavaScript - delete vs splice
...ice(start, deleteCount) actually removes the element, reindexes the array, and changes its length.
> myArray = ['a', 'b', 'c', 'd']
["a", "b", "c", "d"]
> myArray.splice(0, 2)
["a", "b"]
> myArray
["c", "d"]
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