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NodeJS / Express: what is “app.use”?

...yer that only triggered on the path /user/:id that would be reflected as a string in the route field of that middleware layer object in the stack printout above. Each layer is essentially adding a function that specifically handles something to your flow through the middleware. E.g. by adding body...
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Changing user agent on urllib2.urlopen

...86) Gecko/20071127 Firefox/2.0.0.11", while urllib2‘s default user agent string is "Python-urllib/2.6" (on Python 2.6). share | improve this answer | follow ...
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Display JSON as HTML [closed]

... You can use the JSON.stringify function with unformatted JSON. It outputs it in a formatted way. JSON.stringify({ foo: "sample", bar: "sample" }, null, 4) This turns { "foo": "sample", "bar": "sample" } into { "foo": "sample", ...
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How to get config parameters in Symfony2 Twig Templates

... /** * Returns the name of the extension. * * @return string The extension name */ public function getName() { return 'iz'; } } service.yml: iz.twig.extension: class: IzBundle\Services\TwigExtension properties: container: "@service_con...
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Matplotlib plots: removing axis, legends and white spaces

...that newer versions of matplotlib may require bbox_inches=0 instead of the string 'tight' (via @episodeyang and @kadrach) from numpy import random import matplotlib.pyplot as plt data = random.random((5,5)) img = plt.imshow(data, interpolation='nearest') img.set_cmap('hot') plt.axis('off') plt.sa...
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Sorting an array of objects in Ruby by object attribute?

... I recommend using sort_by instead: objects.sort_by {|obj| obj.attribute} Especially if attribute may be calculated. Or a more concise approach: objects.sort_by(&:attribute) ...
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Getting “net::ERR_BLOCKED_BY_CLIENT” error on some AJAX calls

...by file names as below: Particularly in the AdBlock Plus the character string "-300x600" is causing the Failed to Load Resource ERR_BLOCKED_BY_CLIENT problem. As shown in the picture, some of the images were blocked because of the '-300x600' pattern in their name, that particular text patter...
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How to detect internet speed in JavaScript?

...ShowProgressMessage(msg) { if (console) { if (typeof msg == "string") { console.log(msg); } else { for (var i = 0; i < msg.length; i++) { console.log(msg[i]); } } } var oProgress = document.get...
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How can I respond to the width of an auto-sized DOM element in React?

...component: ReactClass<any>, }; type Props = { domProps?: Array<string>, computedStyleProps?: Array<string>, children: (state: State) => ?React.Element<any>, component: ReactClass<any>, }; type State = { remeasure: () => void, computedStyle?: Object, ...
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How to check if a list is empty in Python? [duplicate]

...You can do that, but it would violate pep 8, which says: - For sequences, (strings, lists, tuples), use the fact that empty sequences are false. Yes: if not seq: if seq: No: if len(seq) if not len(seq) – Chris Lacasse No...