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Erasing elements from a vector
...ranteed to occur only once in the vector. It may be present multiple times and I need to clear all of them. My code is something like this:
...
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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How do I get around type erasure on Scala? Or, why can't I get the type parameter of my collections?
... you instantiate a List[Int], you can verify that your instance is a List, and you can verify that any individual element of it is an Int, but not that it is a List[Int], as can be easily verified:
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Scala: What is a TypeTag and how do I use it?
...hat they somehow replaced Manifests. Information on the Internet is scarce and doesn't provide me with a good sense of the subject.
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What does “static” mean in C?
...l for cases where a function needs to keep some state between invocations, and you don't want to use global variables. Beware, however, this feature should be used very sparingly - it makes your code not thread-safe and harder to understand.
(2) Is used widely as an "access control" feature. If you...
Javascript parseInt() with leading zeros
...value, the radix is 10 (decimal).
If the first character cannot be converted to a number, parseInt returns NaN.
And from the ECMAScript 3 standard:
When radix is 0 or undefined and the string's number begins with a 0
digit not followed by an x or X, then the implementation may, at it...
using lodash .groupBy. how to add your own keys for grouped output?
...rt groupBy from "lodash/fp/groupBy";
const map = require('lodash/fp/map').convert({ 'cap': false });
const result = flow(
groupBy('color'),
map((users, color) => ({color, users})),
tap(console.log)
)(input)
Where input is an array that you want to convert.
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“Diff” an image using ImageMagick
... approach, particularly when comparing images which are mostly grayscale:
convert '(' file1.png -flatten -grayscale Rec709Luminance ')' \
'(' file2.png -flatten -grayscale Rec709Luminance ')' \
'(' -clone 0-1 -compose darken -composite ')' \
-channel RGB -combine diff.png
...
Bash syntax error: unexpected end of file
...m on StackOverflow
Open the file in Vim and try
:set fileformat=unix
Convert eh line endings to unix endings and see if that solves the
issue. If editing in Vim, enter the command :set fileformat=unix and
save the file. Several other editors have the ability to convert line
endings, such...
How to refresh app upon shaking the device?
I need to add a shake feature that will refresh my Android application.
16 Answers
16
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