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In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
...nd preclude a whole bunch of new features from being implemented in Python 2.x.
What yield from does is it establishes a transparent bidirectional connection between the caller and the sub-generator:
The connection is "transparent" in the sense that it will propagate everything correctly too, not...
Function for Factorial in Python
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192
Easiest way is to use math.factorial (available in Python 2.6 and above):
import math
math.fact...
XDocument.ToString() drops XML Encoding Tag
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edited May 23 '17 at 12:10
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111 silver badge
answered Aug 4 '09 at 17:56
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Capitalize first letter. MySQL
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279
It's almost the same, you just have to change to use the CONCAT() function instead of the + op...
How to calculate the number of days between two dates? [duplicate]
...
const oneDay = 24 * 60 * 60 * 1000; // hours*minutes*seconds*milliseconds
const firstDate = new Date(2008, 1, 12);
const secondDate = new Date(2008, 1, 22);
const diffDays = Math.round(Math.abs((firstDate - secondDate) / oneDay));
...
Need for predictable random generator
...loper and I got a problem with random numbers. Let's say that a player has 20% chance to get a critical hit with his sword. That means, 1 out of 5 hits should be critical. The problem is I got very bad real life results — sometimes players get 3 crits in 5 hits, sometimes none in 15 hits. Battles ...
What's the difference between Sender, From and Return-Path?
...y round?
– Ethan Leroy
Feb 6 '15 at 22:03
7
Imagine some VIP that has an assistant managing their...
How do you connect to multiple MySQL databases on a single webpage?
...For example:
$dbh1 = mysql_connect($hostname, $username, $password);
$dbh2 = mysql_connect($hostname, $username, $password, true);
mysql_select_db('database1', $dbh1);
mysql_select_db('database2', $dbh2);
Then to query database 1 pass the first link identifier:
mysql_query('select * from tabl...
Defining an array of anonymous objects in CoffeeScript
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28
you can't:
this is some tricks:
items:[
(name:"value1")
(name:"value2")
]
another
...
Javascript reduce() on Object
...plementation with that in mind:
const add = {
a: {value:1},
b: {value:2},
c: {value:3}
}
const total = Object.values(add).reduce((t, {value}) => t + value, 0)
console.log(total) // 6
or simply:
const add = {
a: 1,
b: 2,
c: 3
}
const total = Object.values(add).reduce((t, n) =>...