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Eclipse executable launcher error: Unable to locate companion shared library
...n instance of LiClipse (Eclipse distro for Python) which had been upgraded from 1.x to 2.x to 3.0.6, and had several other Eclipse features installed. On Mac OS X 10.10.5. This install worked until I updated or removed any of 5 features. Once broken, Time Machine restored a working LiClipse. In the...
How do you connect localhost in the Android emulator? [duplicate]
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But you need to change API from "localhost:port" to "127.0.0.1:port" first. after that, Use 10.0.2.2 to access your actual machine.
– binhtruong.it
Dec 9 '18 at 11:49
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Let JSON object accept bytes or let urlopen output strings
With Python 3 I am requesting a json document from a URL.
12 Answers
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How do I unlock a SQLite database?
...e is how i fixed it:
echo ".dump" | sqlite old.db | sqlite new.db
Taken from: http://random.kakaopor.hu/how-to-repair-an-sqlite-database
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Proxies with Python 'Requests' module
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r = requests.get(url, headers=headers, proxies=proxyDict)
Deduced from the requests documentation:
Parameters:
method – method for the new Request object.
url – URL for the new Request object.
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proxies – (optional) Dictionary mapping protocol to the URL of the proxy.
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What is Hindley-Milner?
...e. The principal type of the list-length function is "for any a, function from list of a to integer". Here a is a so-called "type parameter," which is explicit in lambda calculus but implicit in most programming languages. The use of type parameters explains why Hindley-Milner is a system that im...
Why use symbols as hash keys in Ruby?
...access a hash, Ruby always applies a hash-function to compute a "hash-key" from whatever key you use. You can imagine something like an MD5-hash. And then Ruby compares those "hashed keys" against each other.
Long answer:
https://web.archive.org/web/20180709094450/http://www.reactive.io/tips/2009...
How much size “Null” value takes in SQL Server
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The reason for the discrepancies that you have observed in information from other sources:
The start of the first article is a bit misleading. The article is not talking about the cost of storing a NULL value, but the cost of having the ability to store a NULL (i.e the cost of making a column ...
How can I start an interactive console for Perl?
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perlconsole doesn't suffer from these problems.
– Geremia
Sep 5 '16 at 16:53
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Check if array is empty or null
...unction. Much better to get it once into a local variable and then use it from that local variable.
It's recommended to initialize arrays with [] rather than new Array().
if (value) when value is expected to be a string will both protect from value == null, value == undefined and value == "" so you...