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How do you do block comments in YAML?
...ments.
From Wikipedia:
Comments begin with the number sign ( # ), can start anywhere on a line, and continue until the end of the line
A comparison with JSON, also from Wikipedia:
The syntax differences are subtle and seldom arise in practice: JSON allows extended charactersets like UTF-3...
Use of 'const' for function parameters
...r local data flow is put const in every variable definition until compiler starts barking. This means const-qualifying value arguments as well, because they are just fancy local variables initialized by caller.
Ah, I wish variables were const by default and mutable was required for non-const variab...
SQL “between” not inclusive
...tetimes to dates. The second date is interpreted as midnight when the day starts.
One way to fix this is:
SELECT *
FROM Cases
WHERE cast(created_at as date) BETWEEN '2013-05-01' AND '2013-05-01'
Another way to fix it is with explicit binary comparisons
SELECT *
FROM Cases
WHERE created_at >...
How do I iterate through the files in a directory in Java?
...
It's a tree, so recursion is your friend: start with the parent directory and call the method to get an array of child Files. Iterate through the child array. If the current value is a directory, pass it to a recursive call of your method. If not, process the leaf...
scrollIntoView Scrolls just too far
...ntById('anchor-name')
element.scrollIntoView({ behavior: 'smooth', block: 'start' });
For smooth scrolling with an offset of 100px.
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How do I trim whitespace?
... line string or a file
s=""" line one
\tline two\t
line three """
#line1 starts with a space, #2 starts and ends with a tab, #3 ends with a space.
s1=s.splitlines()
print s1
[' line one', '\tline two\t', 'line three ']
print [i.strip() for i in s1]
['line one', 'line two', 'line three']
#mor...
reformat in vim for a nice column layout
...e upper part, how did you move the cursor to the middle of screen and then start aligning the lower part?
– cychoi
Jul 14 '15 at 20:26
...
Amazon products API - Looking for basic overview and information
...ur use case very straight forward. Amazon provides a fairly basic "getting started" guide available here. As well, you can view the complete API developer documentation here.
Although the documentation is a little hard to find (likely due to all the name changes), the PA API is very well documente...
Collections.emptyList() vs. new instance
...
Starting with Java 5.0 you can specify the type of element in the container:
Collections.<Foo>emptyList()
I concur with the other responses that for cases where you want to return an empty list that stays empty, you ...
More elegant “ps aux | grep -v grep”
...ps up $(pgrep -f sshd)
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1902 0.0 0.1 82560 3580 ? Ss Oct20 0:00 /usr/sbin/sshd -D
$ ps up $(pgrep -f sshddd)
error: list of process IDs must follow p
[stderr output truncated]
$ ps up $(pgrep -f sshddd...