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How to know if two arrays have the same values
...n compare their joined strings to see if they have the same members in any order-
var array1= [10, 6, 19, 16, 14, 15, 2, 9, 5, 3, 4, 13, 8, 7, 1, 12, 18, 11, 20, 17];
var array2= [12, 18, 20, 11, 19, 14, 6, 7, 8, 16, 9, 3, 1, 13, 5, 4, 15, 10, 2, 17];
if(array1.sort().join(',')=== array2.sort().jo...
Transferring an app to another Firebase account
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worked like a charm :) I wanted to add a new owner in order to switch google play account linked with Firebase project.
– Wahib Ul Haq
Jul 23 '17 at 18:34
7
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how to return index of a sorted list? [duplicate]
...rt a list of objects based on a property of the objects. i then need to re-order a corresponding list to match the order of the newly sorted list."
That's a long-winded way of doing it. You can achieve that with a single sort by zipping both lists together then sort using the object property as y...
Is it possible to focus on a using JavaScript focus() function?
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Yes - this is possible. In order to do it, you need to assign a tabindex...
<div tabindex="0">Hello World</div>
A tabindex of 0 will put the tag "in the natural tab order of the page". A higher number will give it a specific order of pri...
Gulp command not found after install
...ed the npm root -g was pointing to /usr/local/lib/node_modules/npm, but in order to install gulp in /usr/local/lib/node_modules, I had to use sudo:
sudo npm install gulp -g
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What's the difference between HEAD^ and HEAD~ in Git?
...Both commit nodes B and C are parents of commit node A. Parent commits are ordered left-to-right. (N.B. The git log --graph command displays history in the opposite order.)
G H I J
\ / \ /
D E F
\ | / \
\ | / |
\|/ |
B C
\ /
\ /
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Nodejs Event Loop
...imilar problem like you when I tried to understand node.js architecture in order to write native modules.
What I am posting here is my understanding of node.js and this might be a bit off track as well.
Libev is the event loop which actually runs internally in node.js to perform simple event loop...
Choosing between std::map and std::unordered_map [duplicate]
Now that std has a real hash map in unordered_map , why (or when) would I still want to use the good old map over unordered_map on systems where it actually exists? Are there any obvious situations that I cannot immediately see?
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Why is SELECT * considered harmful?
...code saves more time and effort in the long run.
If code depends on column order, SELECT * will hide an error waiting to happen if a table had its column order changed.
Even if you need every column at the time the query is written, that might not be the case in the future
the usage complicates pro...
Sorting Python list based on the length of the string
...ey parameter:
xs.sort(key=lambda s: len(s))
This tells the sort method to order based on whatever the key function returns.
EDIT: Thanks to balpha and Ruslan below for pointing out that you can just pass len directly as the key parameter to the function, thus eliminating the need for a lambda:
xs.s...