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Using “this” with class name
I am doing Android programming and was learning about Intents, when I saw a constructor that, to my C# trained mind, seemed funky. The call was:
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Filter dataframe rows if value in column is in a set list of values [duplicate]
I have a Python pandas DataFrame rpt :
7 Answers
7
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Profiling Vim startup time
...with how long Vim takes to start now, so I’d like to profile its startup and see which of the many plugins I have are responsible.
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mongodb find by multiple array items
...r you're trying to find documents where words contains both elements (text and here) using $all:
db.things.find({ words: { $all: ["text", "here"] }});
or either of them (text or here) using $in:
db.things.find({ words: { $in: ["text", "here"] }});
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Add a new element to an array without specifying the index in Bash
...mb Guy points out, it's important to note whether the array starts at zero and is sequential. Since you can make assignments to and unset non-contiguous indices ${#array[@]} is not always the next item at the end of the array.
$ array=(a b c d e f g h)
$ array[42]="i"
$ unset array[2]
$ unset array...
JavaScript module pattern with example [closed]
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In order to approach to Modular design pattern, you need to understand these concept first:
Immediately-Invoked Function Expression (IIFE):
(function() {
// Your code goes here
}());
There are two ways you can use the functions. 1. Function declaration 2. Function expression.
Her...
How to index into a dictionary?
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Dictionaries are unordered in Python versions up to and including Python 3.6. If you do not care about the order of the entries and want to access the keys or values by index anyway, you can use d.keys()[i] and d.values()[i] or d.items()[i]. (Note that these methods create a...
ASP.Net: Literal vs Label
I just wanted to hear some authorities on when and where you should use a LITERAL control over a LABEL .
4 Answers
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How to port data-only volumes from one host to another?
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@Datz it's just a command called to create the data container it could be any command which actually does nothing. The container starts and immediately exits but it is used to persist data.
– tommasop
Jan 26 ...
How do I use Ruby for shell scripting?
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By default, you already have access to Dir and File, which are pretty useful by themselves.
Dir['*.rb'] #basic globs
Dir['**/*.rb'] #** == any depth of directory, including current dir.
#=> array of relative names
File.expand_path('~/file.txt') #=> "/User/mat/...