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namedtuple and default values for optional keyword arguments
...en(fields))
>>> Node()
Node(val=None, left=None, right=None)
Or better yet, use the new dataclasses library, which is much nicer than namedtuple.
>>> from dataclasses import dataclass
>>> from typing import Any
>>> @dataclass
... class Node:
... val: Any = ...
How to wait for a keypress in R?
...
As someone already wrote in a comment, you don't have to use the cat before readline(). Simply write:
readline(prompt="Press [enter] to continue")
If you don't want to assign it to a variable and don't want a return printed in the console, wrap the readline() in an invisible():
invisible(r...
Including another class in SCSS
... for a simple case like this.
One can just do:
.myclass {
font-weight: bold;
font-size: 90px;
}
.myotherclass {
@extend .myclass;
color: #000000;
}
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PHP - Merging two arrays into one array (also Remove Duplicates)
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C. E.C. E.
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How to use ng-repeat without an html element
...ular 1.2+, use ng-repeat-start. See @jmagnusson's answer.
Otherwise, how about putting the ng-repeat on tbody? (AFAIK, it is okay to have multiple <tbody>s in a single table.)
<tbody ng-repeat="row in array">
<tr ng-repeat="item in row">
<td>{{item}}</td>
&l...
DROP IF EXISTS VS DROP?
Can someone tell me if there is any difference between
5 Answers
5
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What is the difference between a map and a dictionary?
...t maps keys to values. Isn't a dictionary the same? What is the difference between a map and a dictionary 1 ?
11 Answers
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make arrayList.toArray() return more specific types
So, normally ArrayList.toArray() would return a type of Object[] ....but supposed it's an
Arraylist of object Custom , how do I make toArray() to return a type of Custom[] rather than Object[] ?
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How to remove unreferenced blobs from my git repo
I have a GitHub repo that had two branches - master & release.
10 Answers
10
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What is Inversion of Control?
Inversion of Control (IoC) can be quite confusing when it is first encountered.
37 Answers
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