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When to use enumerateObjectsUsingBlock vs. for

...lock is consistently 700% slower than for-in (based on 1mm iterations of a 100 item array). Is performance a real practical concern here? Definitely not, with rare exception. The point is to demonstrate that there is little benefit to using enumerateObjectsUsingBlock: over for-in without a really...
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How to make an empty div take space

...t will be 1 px, if you want default height you can simply say min-height = 100px and min width = 100px, the div will always be 100x100 no way it will be 0 – Engineeroholic Oct 24 '16 at 22:37 ...
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Constants in Objective-C

...nit including the header file will get its own static variable, so you get 100 of them if you include the header from 100 .m files. – gnasher729 Apr 14 '14 at 10:55 ...
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Histogram Matplotlib

... import matplotlib.pyplot as plt import numpy as np mu, sigma = 100, 15 x = mu + sigma * np.random.randn(10000) hist, bins = np.histogram(x, bins=50) width = 0.7 * (bins[1] - bins[0]) center = (bins[:-1] + bins[1:]) / 2 plt.bar(center, hist, align='center', width=width) plt.show() The...
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App Inventor 2 字典代码块 · App Inventor 2 中文网

...径”中的下一个元素,继续检查整个路径,此时它返回该位置的内容,或者“未找到”参数的值。 不明白?看例子最直观! { "id": 1, "name": "Tim the Beaver", "school": { "name": "Massachusetts Institute of Technology" }, "enrolled": true, ...
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possible EventEmitter memory leak detected

...Listeners via: const emitter = new EventEmitter() emitter.setMaxListeners(100) // or 0 to turn off the limit emitter.setMaxListeners(0) But if it's not your code you can use the trick to increase the default limit globally: require('events').EventEmitter.prototype._maxListeners = 100; Of cours...
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Inject service in app.config

...but I have successfully injected a service into a config block. (AngularJS v1.0.7) angular.module('dogmaService', []) .factory('dogmaCacheBuster', [ function() { return function(path) { return path + '?_=' + Date.now(); }; } ]); angul...
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Bootstrap datepicker hide after selection

... There's a version 2? I see v1.6.4 as the latest release on Github – garryp Oct 25 '16 at 12:21 ...
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reformat in vim for a nice column layout

...t the macro for all remaining lines. Copy/pasted from that answer: qa0f:w100i <Esc>19|dwjq4@a Note the single space after the 100i, and the <Esc> means "press escape"--don't type "<Esc>" literally. Translation: qa -- record macro in hotkey a 0 -- go to beginn...
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Can I serve multiple clients using just Flask app.run() as standalone?

... What if I am looking at a max of 100 users? Can I just assign processes=100 and be happy with it? In my case, I only need static files, no HTTP Post methods. My requirement is, I want to run all Flask threads as part of my parent app, so that they all can sh...