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Significant new inventions in computing since 1980

...e form before, but the combination was obvious only in hindsight. And I know for sure that you are using it right now. share edited Jan 11 '09 at 16:06 ...
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Difference between volatile and synchronized in Java

...ariables cannot be reordered with each other. The difference is that it is now no longer so easy to reorder normal field accesses around them. Writing to a volatile field has the same memory effect as a monitor release, and reading from a volatile field has the same memory effect as a monitor acquir...
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Are PHP Variables passed by value or by reference?

... $str would be assigned null, in your case. – The Unknown Dev Jan 22 '15 at 19:31 if you do it this way @ObmerkKronen ...
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Understanding events and event handlers in C#

...say these methods have the same signature, or shape, as the delegate. So knowing how to create a reference to a method, let's think about the purpose of events: we want to cause some code to be executed when something happens elsewhere in the system - or "handle the event". To do this, we create sp...
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node.js fs.readdir recursive directory search

... yield res; } } } Usage has changed because the return type is now an async iterator instead of a promise (async () => { for await (const f of getFiles('.')) { console.log(f); } })() In case somebody is interested, I've written more about async iterators here: https://qwtel.c...
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When should I use Arrow functions in ECMAScript 6?

...a mid-sized AngularJS app) to JavaScript compiled using Traceur Babel. I'm now using the following rule of thumb for functions in ES6 and beyond: Use function in the global scope and for Object.prototype properties. Use class for object constructors. Use => everywhere else. Why use arrow func...
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How to set Bullet colors in UL/LI html lists via CSS without using any images or span tags [duplicat

Imagine a simple unsorted list with some <li> items. Now, I have defined the bullets to be square shaped via list-style:square; However, if I set the color of the <li> items with color: #F00; then everything becomes red! ...
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V

... There's a dynamic programming solution. We start off knowing 0 keys can make us 0 A's. Then we iterate through for i up to n, doing two things: pressing A once and pressing select all + copy followed by paste j times (actually j-i-1 below; note the trick here: the contents are s...
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Why use pointers? [closed]

I know this is a really basic question, but I've just started with some basic C++ programming after coding a few projects with high-level languages. ...
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Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?

Git has a well-known, or at least sort-of-well-known, empty tree whose SHA1 is: 3 Answers ...