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Install dependencies globally and locally using package.json

...ies commands (in node_modules/.bin) act as if they are in your path. For example: npm i --save-dev mocha # Install test runner locally npm i --save-dev babel # Install current babel locally Then in package.json: // devDependencies has mocha and babel now "scripts": { "test": "mocha", "build": ...
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Generate an integer that is not among four billion given ones

...ITSPERWORD]; void set(int i) { a[i>>SHIFT] |= (1<<(i & MASK)); } void clr(int i) { a[i>>SHIFT] &= ~(1<<(i & MASK)); } int test(int i){ return a[i>>SHIFT] & (1<<(i & MASK)); } Bentley's algorithm makes a single pass over the...
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__getattr__ on a module

... A while ago, Guido declared that all special method lookups on new-style classes bypass __getattr__ and __getattribute__. Dunder methods had previously worked on modules - you could, for example, use a module as a context manager simply by defining __enter__...
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What is &&& operation in C

... It's c = i && (&i);, with the second part being redundant, since &i will never evaluate to false. For a user-defined type, where you can actually overload unary operator &, it might be different, but it's still a ver...
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How can I get a list of all classes within current module in Python?

I've seen plenty of examples of people extracting all of the classes from a module, usually something like: 11 Answers ...
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How to retrieve a single file from a specific revision in Git?

... out of the output and used as an argument to git-cat-file, which should really be called git-cat-object, and simply dumps that object to stdout. Note: since Git 2.11 (Q4 2016), you can apply a content filter to the git cat-file output. See commit 3214594, commit 7bcf341 (09 Sep 2016), commit 7bcf3...
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Difference between a theta join, equijoin and natural join

... A theta join allows for arbitrary comparison relationships (such as ≥). An equijoin is a theta join using the equality operator. A natural join is an equijoin on attributes that have the same name in each relationship. Additionally,...
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Test if something is not undefined in JavaScript

...then check for its property title. if(typeof response[0] !== 'undefined' && typeof response[0].title !== 'undefined'){ //Do something } share | improve this answer | ...
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How does `is_base_of` work?

...for the first check function according to 13.3.1.5/1 D* (Host<B, D>&) The first conversion function isn't a candidate, because B* can't be converted to D*. For the second function, the following candidates exist: B* (Host<B, D> const&) D* (Host<B, D>&) Those are...
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Nullable type as a generic parameter possible?

...'t seem to like Nullable<(ref type)> like "string?". Robert C Barth & James Jones's solutions, below, seem much better to me if that's your need. – bacar Jul 28 '11 at 10:43 ...