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Image Greyscale with CSS & re-color on mouse-over?

...kground: url(http://4.bp.blogspot.com/-IzPWLqY4gJ0/T01CPzNb1KI/AAAAAAAACgA/_8uyj68QhFE/s400/a2cf7051-5952-4b39-aca3-4481976cb242.jpg); } svg image { transition: all .6s ease; } svg image:hover { opacity: 0; } <p>Firefox, Chrome, Safari, IE6-9</p> <img class="grayscale...
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Find an item in List by LINQ?

...u don't need LINQ, just use: int GetItemIndex(string search) { return _list == null ? -1 : _list.IndexOf(search); } If you are looking for the item itself, try: string GetItem(string search) { return _list == null ? null : _list.FirstOrDefault(s => s.Equals(search)); } ...
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How can I change UIButton title color?

... With Swift 5, UIButton has a setTitleColor(_:for:) method. setTitleColor(_:for:) has the following declaration: Sets the color of the title to use for the specified state. func setTitleColor(_ color: UIColor?, for state: UIControlState) The following Playgro...
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How to create a density plot in matplotlib?

... Sven has shown how to use the class gaussian_kde from Scipy, but you will notice that it doesn't look quite like what you generated with R. This is because gaussian_kde tries to infer the bandwidth automatically. You can play with the bandwidth in a way by changing the...
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Calling Python in Java?

...yObject someFunc = interpreter.get("funcName"); PyObject result = someFunc.__call__(new PyString("Test!")); String realResult = (String) result.__tojava__(String.class); share | improve this answer...
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Writing a Python list of lists to a csv file

...s pd In [2]: a = [[1.2,'abc',3],[1.2,'werew',4],[1.4,'qew',2]] In [3]: my_df = pd.DataFrame(a) In [4]: my_df.to_csv('my_csv.csv', index=False, header=False) share | improve this answer ...
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How to detect if app is being built for device or simulator in Swift

...ect iOS on a desktop architecture like follows #if (arch(i386) || arch(x86_64)) && os(iOS) ... #endif After Swift 4.1 version Latest use, now directly for all in one condition for all types of simulators need to apply only one condition - #if targetEnvironment(simulator) // ...
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Loading basic HTML in Node.js

...ttp'); var fs = require('fs'); var path = require('path'); var ext = /[\w\d_-]+\.[\w\d]+$/; http.createServer(function(req, res){ if (req.url === '/') { res.writeHead(200, {'Content-Type': 'text/html'}); fs.createReadStream('index.html').pipe(res); } else if (ext.test(req.ur...
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How to detect that animation has ended on UITableView beginUpdates/endUpdates?

...targeting iOS 11 and above, you should use UITableView.performBatchUpdates(_:completion:) instead: tableView.performBatchUpdates({ // delete some cells // insert some cells }, completion: { finished in // animation complete }) ...
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How does one generate a random number in Apple's Swift language?

...swered Jun 3 '14 at 4:32 Catfish_ManCatfish_Man 38.6k1111 gold badges6363 silver badges8181 bronze badges ...