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How does type Dynamic work and how to use it?
...It is correct, scala.Dynamic doesn't have any members, it is just a marker interface - the concrete implementation is filled-in by the compiler. As for Scalas String Interpolation feature there are well defined rules describing the generated implementation. In fact, one can implement four different ...
How can I convert a string to a number in Perl?
I have a string which holds a decimal value in it and I need to convert that string into a floating point variable. So an example of the string I have is "5.45" and I want a floating point equivalent so I can add .1 to it. I have searched around the internet, but I only see how to convert a string t...
Get exception description and stack trace which caused an exception, all as a string
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It is better than sys.exc_info() which is not good OO style and use global variable.
– WeiChing 林煒清
May 20 '16 at 4:00
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What is the difference between related SQLite data-types like INT, INTEGER, SMALLINT and TINYINT?
...RDBMSes. Everything, internally, is stored as text. Data types are coerced/converted into various storage locations based on affinities (ala data types assigned to columns).
The best thing that I'd recommend you do is to :
Temporarily forget everything you used to know about standalone database d...
LIMIT 10..20 in SQL Server
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For SQL Server 2012 + you can use.
SELECT *
FROM sys.databases
ORDER BY name
OFFSET 5 ROWS
FETCH NEXT 5 ROWS ONLY
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Get the IP address of the machine
...nd should be the same below.
I've done a quick example below which will print all of the machine's IPv4 address, (you should also check the getifaddrs was successful ie returns 0).
I've updated it show IPv6 addresses too.
#include <stdio.h>
#include <sys/types.h>
#include <if...
Threads vs Processes in Linux
...sses and threads -- everything is simply a runnable task. *
On Linux, the system call clone clones a task, with a configurable level of sharing, among which are:
CLONE_FILES: share the same file descriptor table (instead of creating a copy)
CLONE_PARENT: don't set up a parent-child relationship b...
What is the equivalent of bigint in C#?
...r how much they look alike. Part of the reason is that SQL will frequently convert Int/BigInt to Numeric as part of the normal processing. So when it goes to OLE or .NET the required conversion is NUMERIC to INT.
We don't often notice since the printed value looks the same.
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Convert base64 string to ArrayBuffer
I need to convert a base64 encode string into an ArrayBuffer.
The base64 strings are user input, they will be copy and pasted from an email, so they're not there when the page is loaded.
I would like to do this in javascript without making an ajax call to the server if possible.
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In Python, how do I convert all of the items in a list to floats?
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float(item) do the right thing: it converts its argument to float and and return it, but it doesn't change argument in-place. A simple fix for your code is:
new_list = []
for item in list:
new_list.append(float(item))
The same code can written shorter u...