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Return first N key:value pairs from dict
...ch keys were inserted first.
You can get any n key-value pairs though:
n_items = take(n, d.iteritems())
This uses the implementation of take from the itertools recipes:
from itertools import islice
def take(n, iterable):
"Return first n items of the iterable as a list"
return list(isli...
How to find index of all occurrences of element in array?
...arameter that specifies the index to start searching from, so you can call it in a loop to find all instances of a particular value:
function getAllIndexes(arr, val) {
var indexes = [], i = -1;
while ((i = arr.indexOf(val, i+1)) != -1){
indexes.push(i);
}
return indexes;
}
v...
What is the best alternative IDE to Visual Studio [closed]
...xpand my horizons and see what else there is on offer as an alternative to it. So what in your opinion is the best alternative to Visual Studio? Is there a viable alternative?
...
Possible reasons for timeout when trying to access EC2 instance
...on timed out. What could be the reasons why, and what can I do to resolve it? Rebooting normally takes a long time to take effect, and might just makes things worst
...
Sorting an array of objects by property values
...follow
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edited Jun 18 at 18:45
Abhishek
4,99833 gold badges99 silver badges2727 bronze badges
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Java: is there a map function?
...m(Collection<E>, Function<E,E2>)
method provides the functionality you require.
Example:
// example, converts a collection of integers to their
// hexadecimal string representations
final Collection<Integer> input = Arrays.asList(10, 20, 30, 40, 50);
final Collection<String>...
Image comparison - fast algorithm
...an the first approach, and is straightforward to implement. However, what it gains in understandability, it lacks in robustness -- matching fails on scaled, rotated, or discolored images.
The third method is both fast and robust, but is potentially the hardest to implement.
Keypoint Matching
Bet...
Why Does OAuth v2 Have Both Access and Refresh Tokens?
... can return both an access_token (which is used to authenticate oneself with a resource) as well as a refresh_token , which is used purely to create a new access_token :
...
What's the difference between a word and byte?
I've done some research.
A byte is 8 bits and a word is the smallest unit that can be addressed on memory. The exact length of a word varies. What I don't understand is what's the point of having a byte? Why not say 8 bits?
...
Vertically centering a div inside another div [duplicate]
...ours is the safer way to go for those. But since you tagged your question with CSS3 and HTML5 I was thinking that you don't mind using a modern solution.
The classic solution (table layout)
This was my original answer. It still works fine and is the solution with the widest support. Table-layout w...