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Add object to ArrayList at specified index
... System.out.println(i+": "+a.get(i));
}
}
yields this result from the console:
0: zero
1: one
2: two
3: null
4: null
5: five
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How to make part of the text Bold in android at runtime?
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You can do it using Kotlin and buildSpannedString extension function from core-ktx
holder.textView.text = buildSpannedString {
bold { append("$name\n") }
append("$experience $dateOfJoining")
}
shar...
Are delphi variables initialized with a value by default?
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Here's a quote from Ray Lischners Delphi in a Nutshell Chapter 2
"When Delphi first creates an object, all of the fields start out empty, that is, pointers are initialized to nil, strings and dynamic arrays are empty, numbers have the v...
How to get git diff with full context?
...macOS:
git diff -U$(wc -l main.htm | xargs)
see "How to trim whitespace from a Bash variable?"
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How to generate unique ID with node.js
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Another approach is using the shortid package from npm.
It is very easy to use:
var shortid = require('shortid');
console.log(shortid.generate()); // e.g. S1cudXAF
and has some compelling features:
ShortId creates amazingly short non-sequential url-friendly uniqu...
How to do a non-greedy match in grep?
...ds, try to avoid wildcards.
For example, to fetch all links to jpeg files from the page content, you'd use:
grep -o '"[^" ]\+.jpg"'
To deal with multiple line, pipe the input through xargs first. For performance, use ripgrep.
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What is the syntax rule for having trailing commas in tuple definitions?
...required when required for other syntactic reasons: to distinguish a tuple from a set of function arguments, operator precedence, or to allow line breaks.
The trailing comma for tuples, lists, or function arguments is good style especially when you have a long initialisation that is split over mult...
How to fix homebrew permissions?
...used sudo before in a way that altered my folder permission on /usr/local,
from here on forward all installations with brew have proven to be successful.
This answer comes courtesy of gitHub's homebrew issue tracker
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File system that uses tags rather than folders?
.... It's a fuse based user space file system. It can show tagged directories from a source directory in a tag filter view.
E.g. let's say you have a directory 'vacation india' which is tagged 'india' and 'photos' and a directory 'vacation spain' tagged 'spain' and 'photos'. You can filter all your ph...
grep, but only certain file extensions
...EP email@domain.com
that should do what you want.
To take the explanation from HoldOffHunger's answer below:
grep: command
-r: recursively
-i: ignore-case
-n: each output line is preceded by its relative line number in the file
--include \*.cpp: all *.cpp: C++ files (escape with \ just in case...