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What does `unsigned` in MySQL mean and when to use it?

What does "unsigned" mean in MySQL and when should I use it? 1 Answer 1 ...
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HTML-parser on Node.js [closed]

...DOM you can use jsdom. There's also cheerio, it has the jQuery interface and it's a lot faster than older versions of jsdom, although these days they are similar in performance. You might wanna have a look at htmlparser2, which is a streaming parser, and according to its benchmark, it seems to be...
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How can I extract all values from a dictionary in Python?

... If you only need the dictionary keys 1, 2, and 3 use: your_dict.keys(). If you only need the dictionary values -0.3246, -0.9185, and -3985 use: your_dict.values(). If you want both keys and values use: your_dict.items() which returns a list of tuples [(key1, value1)...
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How to avoid “ConcurrentModificationException” while removing elements from `ArrayList` while iterat

... Use an Iterator and call remove(): Iterator<String> iter = myArrayList.iterator(); while (iter.hasNext()) { String str = iter.next(); if (someCondition) iter.remove(); } ...
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How can a Metro app in Windows 8 communicate with a backend desktop app on the same machine?

...ave the UI frontend built using the new Metro style of apps for windows 8, and would like it to communicate with a .NET application running on the desktop on the same local machine (e.g. a windows service app). ...
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How can I fill out a Python string with spaces?

... @simon 's answer is more flexible and more useful when formatting more complex strings – CoatedMoose Jul 27 '13 at 7:08 4 ...
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Downloading MySQL dump from command line

...he contents of a MySQL database. Is there a way I can do this from the command line? 13 Answers ...
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Using R to list all files with a specified extension

I'm very new to R and am working on updating an R script to iterate through a series of .dbf tables created using ArcGIS and produce a series of graphs. ...
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Detect if Android device has Internet connection

... The best way to check if there is an active Internet connection is to try and connect to a known server via http. public static boolean hasActiveInternetConnection(Context context) { if (isNetworkAvailable(context)) { try { HttpURLConnection urlc = (HttpURLConnection) (new...
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'this' vs $scope in AngularJS controllers

... "How does this and $scope work in AngularJS controllers?" Short answer: this When the controller constructor function is called, this is the controller. When a function defined on a $scope object is called, this is the "scope in effec...