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Why do Java webapps use .do extension? Where did it come from?

...Ls that will be processed by the controller servlet -- prefix matching and extension matching. An appropriate mapping entry for each approach will be described below. Prefix matching means that you want all URLs that start (after the context path part) with a particular value to ...
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What does a space mean in a CSS selector? i.e. What is the difference between .classA.classB and .cl

... .classA.classB refers to an element that has both classes A and B (class="classA classB"); whereas .classA .classB refers to an element with class="classB" descended from an element with class="classA". Edit: Spec for reference: Attribute Selectors (See section 5.8.3 Class Selectors)...
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How to validate an e-mail address in swift?

... edited Dec 30 '19 at 7:17 Zandor Smith 34833 silver badges1717 bronze badges answered Aug 24 '14 at 11:20 ...
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Flatten nested dictionaries, compressing keys

...iterating the dict by key/value, creating new keys for your new dictionary and creating the dictionary at final step. import collections def flatten(d, parent_key='', sep='_'): items = [] for k, v in d.items(): new_key = parent_key + sep + k if parent_key else k if isinstan...
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How could I use requests in asyncio?

... can use BaseEventLoop.run_in_executor to run a function in another thread and yield from it to get the result. For example: import asyncio import requests @asyncio.coroutine def main(): loop = asyncio.get_event_loop() future1 = loop.run_in_executor(None, requests.get, 'http://www.google.c...
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What is considered a good response time for a dynamic, personalized web application? [closed]

For a complex web application that includes dynamic content and personalization, what is a good response time from the server (so excluding network latency and browser rendering time)? I'm thinking about sites like Facebook, Amazon, MyYahoo, etc. A related question is what is a good response time ...
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Rails bundle install production only

I'm still new to rails/ruby/bundler and am a little confused. 2 Answers 2 ...
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MAC addresses in JavaScript

... Using Java (with a signed applet) Using signed Javascript, which in FF (and Mozilla in general) gets higher privileges than normal JS (but it is fairly complicated to set up) share | improve thi...
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How can I quickly sum all numbers in a file?

I have a file which contains several thousand numbers, each on it's own line: 33 Answers ...
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Is there a “not in” operator in JavaScript for checking object properties?

...se statement just to use the else portion... Just negate your condition, and you'll get the else logic inside the if: if (!(id in tutorTimes)) { ... } share | improve this answer | ...