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How can I reorder a list? [closed]
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I just could not understand the syntax until I realized is a pairwise simultaneous assignment. ´:-)
– loved.by.Jesus
Apr 27 at 9:56
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Count number of occurrences of a pattern in a file (even on same line)
...occurrences, use -o. Try this:
echo afoobarfoobar | grep -o foo | wc -l
And man grep of course (:
Update
Some suggest to use just grep -co foo instead of grep -o foo | wc -l.
Don't.
This shortcut won't work in all cases. Man page says:
-c print a count of matching lines
Difference in these...
How to set conditional breakpoints in Visual Studio?
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In VS 2015 you need to hover over the breakpoint and click the gear icon to set conditions
– mark.monteiro
Dec 8 '15 at 14:29
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switch() statement usage
...ue again. It seems switch is generally faster than if statements.
So that, and the fact that the code is shorter/neater with a switch statement leans in favor of switch:
# Simplified to only measure the overhead of switch vs if
test1 <- function(type) {
switch(type,
mean = 1,
m...
When tracing out variables in the console, How to create a new line?
...ead of single quote ' or double quote marks ". They also preserve new line and tab
const roleName = 'test1';
const role_ID = 'test2';
const modal_ID = 'test3';
const related = 'test4';
console.log(`
roleName = ${roleName}
role_ID = ${role_ID}
modal_ID = ${modal_ID}
rel...
How do you plot bar charts in gnuplot?
...ata.dat' every 2::1 using 1:2 with boxes ls 2
If you want to be tricky and use some neat gnuplot tricks:
Gnuplot has psuedo-columns that can be used as the index to color:
plot 'data.dat' using 1:2:0 with boxes lc variable
Further you can use a function to pick the colors you want:
mycolo...
Does a finally block run even if you throw a new Exception?
In this code will someVar be set even if the catch block is executed and the second Exception is thrown?
6 Answers
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Enabling markdown highlighting in Vim
I'm using Vim in a terminal on my MacBook Air with OS X Lion, and I can't seem to find a good plugin for Markdown syntax highlighting.
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How to draw a path on a map using kml file?
Can I parse kml file in order to display paths or points in Android? Please could you help me with that?
4 Answers
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C# Java HashMap equivalent
...ou should be aware of:
Adding/Getting items
Java's HashMap has the put and get methods for setting/getting items
myMap.put(key, value)
MyObject value = myMap.get(key)
C#'s Dictionary uses [] indexing for setting/getting items
myDictionary[key] = value
MyObject value = myDictionary[key]
nu...