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Finding the index of elements based on a condition using python list comprehension
...iltr(x)]
print(indices([1,0,3,5,1], lambda x: x==1))
Yields: [0, 4]
In my imagination the perfect way would be making a child class of list and adding the indices function as class method. In this way only the filter method would be needed:
class MyList(list):
def __init__(self, *args):
...
127 Return code from $?
...he editor you are using. This link might help you in such cases.
-bash: ./my_script: /bin/bash^M: bad interpreter: No such file or directory
The best way to find out if it is this issue is to simple place an echo statement in the entire file and verify if the same error is thrown.
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grep a tab in UNIX
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It doesn't seem to work against my pattern. Attempting to use that syntax prints nothing. (Is the Mac OS X variant different?)
– futureelite7
Feb 28 '10 at 15:42
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How do I clear only a few specific objects from the workspace?
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Hi! And how could I keep in my R environment two different patterns? I tried "rm(list = grep("^paper" | "ObjectExample", ls(), value = TRUE, invert = TRUE))". Does anyone know?
– Dekike
Nov 1 '19 at 10:11
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How do I replace all line breaks in a string with elements?
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Ah, same here... but my mistake was attempting to specify /\n/g as a string!
– Daniel Fortunov
Mar 15 '13 at 15:26
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System.Net.Http: missing from namespace? (using .net 4.5)
...nd select "System.Net.Http" and "System.Net.Http" options
That`s all!
In my case i had at the beginning .Net 4.0 and "Assemblies" -> "Extensions" option "System.Net.Http" with version 2.0.0.0. After my actions "Assemblies" -> "Framework" options "System.Net.Http" and "System.Net.Http" had th...
delete word after or around cursor in VIM
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<C-o> in insert mode made my day :)
– Lusk116
Jan 29 '16 at 6:44
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Change the default editor for files opened in the terminal? (e.g. set it to TextEdit/Coda/Textmate)
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in my case, I am using zsh so obviously I need to update the .zshrc config file.
– Malloc
Oct 8 '13 at 15:32
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How do you create a static class in C++?
...t would be a class with only static methods. For example:
// header
class MyClass
{
public :
static void myMethod() ;
} ;
// source
void MyClass::myMethod()
{
// etc.
}
But you must remember that "static classes" are hacks in the Java-like kind of languages (e.g. C#) that are unable ...
jQuery $(“#radioButton”).change(…) not firing during de-selection
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The code "if ($("#myCheckbox").attr("checked"))" Didn't work for me, I had to use "if ($("#myCheckbox").is(":checked"))".
– Bartho Bernsmann
Jul 24 '16 at 18:11
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