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remove all variables except functions
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137
Here's a one-liner that removes all objects except for functions:
rm(list = setdiff(ls(), lsf...
What is the PostgreSQL equivalent for ISNULL()
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edited Jan 14 '12 at 2:28
Erwin Brandstetter
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Meaning of “[: too many arguments” error from if [] (square brackets)
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edited Sep 21 '19 at 17:30
answered Dec 8 '12 at 19:46
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What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
...(this[i]);
}
}
return res;
};
console.log([0, 5, 0, 3, 0, 1, 0].filter_0());
//prints [5,3,1]
This is a standard way to extend objects and add new methods. Lots of libraries do this.
However, let's look at how for in works now:
var listeners = ["a", "b", "c"];
for (o in listeners...
Converting of Uri to String
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answered Jun 28 '13 at 2:49
Rico HarisinRico Harisin
3,02911 gold badge1111 silver badges77 bronze badges
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Find directory name with wildcard or similar to “like”
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1 Answer
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What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)
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116
Usage of the $ like ${HOME} gives the value of HOME. Usage of the $ like $(echo foo) means run...
what is the right way to treat Python argparse.Namespace() as a dictionary?
... argparse
>>> args = argparse.Namespace()
>>> args.foo = 1
>>> args.bar = [1,2,3]
>>> d = vars(args)
>>> d
{'foo': 1, 'bar': [1, 2, 3]}
You can modify the dictionary directly if you wish:
>>> d['baz'] = 'store me'
>>> args.baz
'store ...
How to write binary data to stdout in python 3?
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171
A better way:
import sys
sys.stdout.buffer.write(b"some binary data")
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jQuery selectors on custom data attributes using HTML5
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1030
$("ul[data-group='Companies'] li[data-company='Microsoft']") //Get all elements with data-com...