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

...here are a couple of differences, though 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...
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How do I include a file over 2 directories back?

.... And (2) you’d still use a relative path in your define, Unless you actually hard-code the whole absolute server path and I would refrain from that since it has only disadvantages. Or (the third alternative) you could use string manipulation to extract parent directory from the (expanded) current...
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Downloading jQuery UI CSS from Google's CDN

...e to download the jQuery lib for both UI and Core. My question is, do they allow me to download the CSS for it or should I have to host it myself? ...
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Keep overflow div scrolled to bottom unless user scrolls up

...age loads scroll to the bottom of the content. This div has content dynamically added to it and needs to stay scrolled all the way down. Now if the user decides to scroll up I don't want it to jump back to the bottom until the user scrolls all the way down again ...
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scala vs java, performance and memory? [closed]

...y easy to use enormous amounts of memory without realizing it. This is usually very powerful, but occasionally can be annoying. For example, suppose you have an array of strings (called array), and a map from those strings to files (called mapping). Suppose you want to get all files that are in t...
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How do I Sort a Multidimensional Array in PHP [duplicate]

...e' column in each record (or row). So you construct the $dates array (basically the same array, but with only that column), and tell the array_multisort function to sort $mdarray based on that particular column's values. – Dan Burton May 19 '10 at 18:26 ...
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How to design a multi-user ajax web application to be concurrently safe

...r-Side: Determine a reasonable level at which you would define what I'd call "atomic artifacts" (the page? Objects on the page? Values inside objects?). This will depend on your webservers, database & caching hardware, # of user, # of objects, etc. Not an easy decision to make. For each atomic...
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Performance of static methods vs instance methods

...s vs instance methods and their scalability. Assume for this scenario that all class definitions are in a single assembly and that multiple discrete pointer types are required. ...
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What “things” can be injected into others in Angular.js?

...for telling Angular how to create new injectable things; these things are called services. Services are defined by things called providers, which is what you're creating when you use $provide. Defining a provider is done via the provider method on the $provide service, and you can get hold of the $p...
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Why use Abstract Base Classes in Python?

...emented classes. Long version There is a contract between a class and its callers. The class promises to do certain things and have certain properties. There are different levels to the contract. At a very low level, the contract might include the name of a method or its number of parameters. In a s...