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How to add property to a class dynamically?

...ute in code that has downstream usage, so that I can maintain a consistent API. Now I will typically add them to the source code where the object is defined, but let's assume you don't have that access, or you need to truly dynamically choose your functions programmatically. Create a class Using an ...
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Check if image exists on server using JavaScript?

... A better and modern approach is to use ES6 Fetch API to check if an image exists or not: fetch('https://via.placeholder.com/150', { method: 'HEAD' }) .then(res => { if (res.ok) { console.log('Image exists.'); } else { console....
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How to increase the max upload file size in ASP.NET?

... This is possible to do on a specific path aswell. <location path="Api/Controller"> <system.web> <authorization> <allow users="*" /> </authorization> <httpRuntime maxRequestLength="102400" /> </system.web> </locati...
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How do I iterate over an NSArray?

... X 10.6 / iOS 4.0 and above, you also have the option of using block-based APIs to enumerate arrays and other collections: [array enumerateObjectsUsingBlock:^(id object, NSUInteger idx, BOOL *stop) { // do something with object }]; You can also use -enumerateObjectsWithOptions:usingBlock: and...
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Is it bad practice to make a setter return “this”?

...led a builder pattern or a fluent interface. It's also common in the Java API: String s = new StringBuilder().append("testing ").append(1) .append(" 2 ").append(3).toString(); share | improve t...
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How unique is UUID?

... ("real randomness", I guess you'd call it) as possible into random number APIs. See en.wikipedia.org/wiki/Entropy_%28computing%29 – broofa Dec 6 '14 at 13:48 4 ...
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Binary Data in JSON String. Something better than Base64

... By the way, the Google Drive API is doing it in this way: developers.google.com/drive/v2/reference/files/update#examples – Mathias Conradt Jul 30 '15 at 13:51 ...
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Inject service in app.config

...obably only useful if the service factory returned a promise instead of an API. So the way you're currently doing it is probably the best way. – Josh David Miller Aug 5 '13 at 21:20 ...
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Showing empty view when ListView is empty

...Activity if you are using the support library. Tested this by building for API 17 i.e. 4.2.2 image. share | improve this answer | follow | ...
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How can I mock dependencies for unit testing in RequireJS?

... There's a config.map option http://requirejs.org/docs/api.html#config-map. On how-to use it: Define normal module; Define stub module; Configure RequireJS expicitely; requirejs.config({ map: { 'source/js': { 'foo': 'normalModule' }, 'source/test': { ...