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Relation between CommonJS, AMD and RequireJS?

...Default from "my-module"; you will get require again. "use strict"; var _myModule = require("my-module"); var _myModule2 = _interopRequireDefault(_myModule); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } This is because require means the...
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What is the difference between String.Empty and “” (empty string)?

...private hidebysig instance string foo() cil managed { .maxstack 8 L_0000: ldstr "foo" L_0005: ret } .method private hidebysig instance string bar() cil managed { .maxstack 8 L_0000: ldstr "bar" L_0005: ldsfld string [mscorlib]System.String::Empty L_000a: call string [msc...
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'Java' is not recognized as an internal or external command

... You need to configure your environment variables, JAVA_HOME and PATH. JAVA_HOME must contain the path to java, and you should add %JAVA_HOME%\bin to PATH Alternatively, you can simply add to your PATH the whole path to the bin folder, without the JAVA_HOME variable, however, t...
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Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?

... Restrictions You can ask the system catalog pg_database - accessible from any database in the same database cluster. The tricky part is that CREATE DATABASE can only be executed as a single statement. The manual: CREATE DATABASE cannot be executed inside a transaction b...
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What is an “unwrapped value” in Swift?

...e bang operator when the value is nil your application will crash. And in order to use these variables at all in some sort or mathematical operation they must be unwrapped in order to do so. For instance, in Swift only valid number data types of the same kind may be operated on each other. When yo...
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convert an enum to another type of enum

....IsDefined or catch ArgumentExceptions thrown by Enum.Parse. Note that the order of the parameters is more or less reversed from Enum.Parse. – Sander Jun 5 '18 at 16:07 ...
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Functional design patterns [closed]

...s. Chapters 11-13 cover Functors, Applicative Functors and Monads, in that order. This is helpful - many tutorials introduce Functors and then Monads, and then tack Applicative Functors on at the end (if they cover it at all). The order in LYAH is better, because moving from Functors => Applicati...
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Asp.NET Web API - 405 - HTTP verb used to access this page is not allowed - how to set handler mappi

...bling doesn't help, you have to un-install it. – John_ May 10 '12 at 16:08 I can confirm that disabling doesn't help. ...
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How does Bluebird's util.toFastProperties function make an object's properties “fast”?

...es it slow. assertFalse(%HasFastProperties(proto)); DoProtoMagic(proto, set__proto__); // Making it a prototype makes it fast again. assertTrue(%HasFastProperties(proto)); Reading and running this test shows us that this optimization indeed works in v8. However - it would be nice to see how. If we ...
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How to set Python's default version to 3.x on OS X?

...on='python3' in your ~/.profile, and then source ~/.profile in your ~/.bash_profile and/or your~/.zsh_profile with a line like: [ -e ~/.profile ] && . ~/.profile This way, your alias will work across shells. With this, python command now invokes python3. If you want to invoke the "origi...