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What does |= (ior) do in Python?
...
Here we apply merge (|) and update (|=) to dicts:
>>> d1 = {"a": 0, "b": 1, "c": 2}
>>> d2 = {"c": 20, "d": 30}
>>> # Merge, |
>>> d1 | d2
{"a": 0, "b": 1, "c": 20, "d": 30}
>>> d1
{"a": 0, "b": 1, "c": 2}
>>> # Update, |=
>>> d1 |=...
Ruby: How to get the first character of a string
...h more readable. For instance, this:
class String
def initial
self[0,1]
end
end
will allow you to use the initial method on any string. So if you have the following variables:
last_name = "Smith"
first_name = "John"
Then you can get the initials very cleanly and readably:
puts first...
How to test multiple variables against a value?
...
+500
You misunderstand how boolean expressions work; they don't work like an English sentence and guess that you are talking about the sam...
convert '1' to '0001' in JavaScript [duplicate]
How can I convert convert '1' to '0001' in JavaScript without using any 3rd party libraries. I have done this in php using spritf: $time = sprintf('%04.0f',$time_arr[$i]);
...
How to create json by JavaScript for loop?
...ID"); // this works too
var status = document.getElementsByName("status")[0];
var jsonArr = [];
for (var i = 0; i < status.options.length; i++) {
jsonArr.push({
id: status.options[i].text,
optionValue: status.options[i].value
});
}
</script>
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Can someone give an example of cosine similarity, in a very simple, graphical way?
...
10 Answers
10
Active
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Using jQuery to see if a div has a child with a certain class
...
201
You can use the find function:
if($('#popup').find('p.filled-text').length !== 0)
// Do Stu...
How do I format a long integer as a string without separator in Java?
... |
edited Jan 22 '16 at 20:19
RAnders00
4,20144 gold badges2929 silver badges5757 bronze badges
answere...
Should private helper methods be static if they can be static
... blong
2,65566 gold badges3232 silver badges9090 bronze badges
answered Feb 11 '09 at 21:33
Esko LuontolaEsko Luontola
70.3...
How do I use itertools.groupby()?
... ("vehicle", "school bus")]
for key, group in groupby(things, lambda x: x[0]):
for thing in group:
print("A %s is a %s." % (thing[1], key))
print("")
This will give you the output:
A bear is a animal.
A duck is a animal.
A cactus is a plant.
A speed boat is a vehicle.
A schoo...