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How do I read the first line of a file using cat?
...Right; in this case, clearing IFS prevents leading and trailing whitespace from being stripped from the string that's read.
– Charles Duffy
May 24 '18 at 15:39
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How to revert a merge commit that's already pushed to remote branch?
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from two numbers 8989ee0, 7c6b236, which one to go. How would I understand ?
– Arup Rakshit
May 13 '14 at 10:43
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Append values to query string
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As you can see from my example you could use variable names for the parameters. And that's exactly what it does: it appends 2 parameters to the existing url that I have hardcoded here but they could perfectly fine be dynamic.
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angular ng-repeat in reverse
...nds | orderBy:'-'"
or
ng-repeat="friend in friends | orderBy:'+':true"
from https://stackoverflow.com/a/26635708/1782470
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Why declare a struct that only contains an array in C?
... you to pass the array to a function by value, or get it returned by value from a function.
Structs can be passed by value, unlike arrays which decay to a pointer in these contexts.
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Load “Vanilla” Javascript Libraries into Node.js
...erything in your ./node_modules/quadtree/quadtree-lib/ directory are files from your 3rd party library.
Then your ./node_modules/quadtree/index.js file will just load that library from the filesystem and do the work of exporting things properly.
var fs = require('fs');
// Read and eval library
f...
CSV file written with Python has blank lines between each row
...em results in no effect. ie. it results in cross system compatible code.
From Python Docs:
On Windows, 'b' appended to the mode
opens the file in binary mode, so
there are also modes like 'rb', 'wb',
and 'r+b'. Python on Windows makes a
distinction between text and binary
files; the...
Java - sending HTTP parameters via POST method easily
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It's a very basic library. The programmer has to call it from background-thread, in AsyncTask, in IntentService, in Synchronization Handler and the like. And it doesn't depend on Android -> can be used in Java SE and EE as well.
– hgoebl
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Is there a decorator to simply cache function return values?
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Starting from Python 3.2 there is a built-in decorator:
@functools.lru_cache(maxsize=100, typed=False)
Decorator to wrap a function with a memoizing callable that saves up to the maxsize most recent calls. It can save time when an ...
Ruby on Rails: how to render a string as HTML?
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Giving hanks from the future =)
– Carlos Morales
Jan 23 '16 at 6:18
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