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Difference between variable declaration syntaxes in Javascript (including global variables)?

...gh in practical terms they're not usually big ones. There's a fourth way, and as of ES2015 (ES6) there's two more. I've added the fourth way at the end, but inserted the ES2015 ways after #1 (you'll see why), so we have: var a = 0; // 1 let a = 0; // 1.1 (new with ES2015) const a = 0; //...
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What are bitwise shift (bit-shift) operators and how do they work?

I've been attempting to learn C in my spare time, and other languages (C#, Java, etc.) have the same concept (and often the same operators) ... ...
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How to design a multi-user ajax web application to be concurrently safe

...ges to objects while at the same time being able to deliver updates timely and efficiently, detecting and resolving conflicts like the one above. If I was in your shoes I would develop something like this: 1. Server-Side: Determine a reasonable level at which you would define what I'd call "atom...
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Is JavaScript a pass-by-reference or pass-by-value language?

...er that a variable holding an object is in fact a reference to the object) and passed-by-reference (when we consider that the variable to the object holds the object itself). ...
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Handling click events on a drawable within an EditText

...left of the screen. You should use event.getX() instead of event.getRawX() and use editText.getWidth() instead of editText.getRight() – Fletcher Johns Nov 30 '15 at 11:51 ...
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classical inheritance vs prototypal inheritance in javascript

I have googled so many links and can't get good idea about the difference between classical inheritance and prototypal inheritance? ...
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Heap vs Binary Search Tree (BST)

What is the difference between a heap and BST? 8 Answers 8 ...
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Java's Virtual Machine and CLR

As a sort of follow up to the question called Differences between MSIL and Java bytecode? , what is the (major) differences or similarity in how the Java Virtual Machine works versus how the .NET Framework Common Language Runtime (CLR) works? ...
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Why were pandas merges in python faster than data.table merges in R in 2012?

I recently came across the pandas library for python, which according to this benchmark performs very fast in-memory merges. It's even faster than the data.table package in R (my language of choice for analysis). ...
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Image comparison - fast algorithm

I'm looking to create a base table of images and then compare any new images against that to determine if the new image is an exact (or close) duplicate of the base. ...