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File content into unix variable with newlines
... why newlines are replaced with spaces is not entirely to do with the echo command, rather it's a combination of things.
When given a command line, bash splits it into words according to the documentation for the IFS variable:
IFS: The Internal Field Separator that is used for word splitting af...
How to include “zero” / “0” results in COUNT aggregate?
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Is an index needed for a primary key in SQLite?
...constraint) on the parent/referenced field(s) if it doesn't exist; it is recommended that the child/referencing field(s) have an index (which usually won't be unique): see here
– TripeHound
Mar 20 '14 at 14:01
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Check if a value is within a range of numbers
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You're asking a question about numeric comparisons, so regular expressions really have nothing to do with the issue. You don't need "multiple if" statements to do it, either:
if (x >= 0.001 && x <= 0.009) {
// something
}
You could write yourse...
NSDefaultRunLoopMode vs NSRunLoopCommonModes
...esome blog post by Jörn suggests an alternative option, using NSRunLoopCommonModes for connection.
1 Answer
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Converting dict to OrderedDict
...istro for Raspberry Pi. I am trying to print two dictionaries in order for comparison (side-by-side) for a text-adventure. The order is essential to compare accurately.
No matter what I try the dictionaries print in their usual unordered way.
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Is there a /dev/null on Windows?
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I think you want NUL, at least within a command prompt or batch files.
For example:
type c:\autoexec.bat > NUL
doesn't create a file.
(I believe the same is true if you try to create a file programmatically, but I haven't tried it.)
In PowerShell, you want...
How to return a part of an array in Ruby?
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@dertoni: stackoverflow.com/questions/3219229/…
– michelpm
Dec 7 '11 at 23:22
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How to do an INNER JOIN on multiple columns
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27
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Difference between .tagName and .nodeName
...get the type of element.
There are several other types of nodes as well (comment, attribute, text, etc.). To get the name of any of the various node types, you can use the nodeName property.
When using nodeName against an element node, you'll get its tag name, so either could really be used, thou...