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How to overload __init__ method based on argument type?
...t; MyData([1, 2, 3]).data
[1, 2, 3]
>>> MyData.fromfilename("/tmp/foobar").data
['foo\n', 'bar\n', 'baz\n']
>>> MyData.fromdict({"spam": "ham"}).data
[('spam', 'ham')]
The reason it's neater is that there is no doubt about what type is expected, and you aren't forced to guess at ...
Create table in SQLite only if it doesn't exist already
...:
# then table doesn't exist.
custRET = myCustFunc(foo,bar) # replace this with your custom logic
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Creating a comma separated list from IList or IEnumerable
...there, or calling ToList. It's fine to use string myStr = string.Join(",", foo.Select(a => a.someInt.ToString())) though.
– Jon Skeet
Feb 25 '14 at 16:25
...
Pure JavaScript Send POST Data Without a Form
... that using FormData object as following:
data = new FormData()
data.set('Foo',1)
data.set('Bar','boo')
let request = new XMLHttpRequest();
request.open("POST", 'some_url/', true);
request.send(data)
now you can handle the data on the server-side just like the way you deal with reugular HTML For...
What is Node.js? [closed]
...exically scoped variables across call chains. ;) Like this:
var myData = "foo";
database.connect( 'user:pass', function myCallback( result ) {
database.query("SELECT * from Foo where id = " + myData);
} );
// Note that doSomethingElse() executes _BEFORE_ "database.query" which is inside a callb...
Dynamically change color to lighter or darker by percentage CSS (Javascript)
...utton:hover {
filter: brightness(85%);
}
<button class="button">Foo lorem ipsum</button>
Here's more reading from CSS Tricks about the various filters you can use: https://css-tricks.com/almanac/properties/f/filter/
...
django templates: include and extends
...de of a block section.
page1.html:
{% extends "base1.html" %}
{% block foo %}
{% include "commondata.html" %}
{% endblock %}
page2.html:
{% extends "base2.html" %}
{% block bar %}
{% include "commondata.html" %}
{% endblock %}
...
What is the difference between “instantiated” and “initialized”?
...will be initialized. Here are examples of initialization:
obj = 1
obj = "foo"
Instantiation is a very different thing but is related since instantiation is usually followed by initialization:
Dim obj As New Object()
In the preceding line of code, the obj variable is initialized with the refer...
Mixing a PHP variable with a string literal
...ossible to inline function calls with such a method? Something similar to "foo{implode(',', [abc])}bar"
– velop
Apr 27 '17 at 15:46
...
Define a lambda expression that raises an Exception
...an one way to skin a Python:
y = lambda: (_ for _ in ()).throw(Exception('foobar'))
Lambdas accept statements. Since raise ex is a statement, you could write a general purpose raiser:
def raise_(ex):
raise ex
y = lambda: raise_(Exception('foobar'))
But if your goal is to avoid a def, th...