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Test for existence of nested JavaScript object key
If I have a reference to an object:
57 Answers
57
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How to include package data with setuptools/distribute?
...t to someone else to built the binary distribution.
In any case, using MANIFEST.in will work both for binary and for source distributions.
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What is the best algorithm for overriding GetHashCode?
...alue isn't a prime. (The multiplication constant is prime though. I don't know quite how important that is.)
This is better than the common practice of XORing hashcodes for two main reasons. Suppose we have a type with two int fields:
XorHash(x, x) == XorHash(y, y) == 0 for all x, y
XorHash(x, y) ...
Why does using an Underscore character in a LIKE filter give me all the results?
...
Modify your WHERE condition like this:
WHERE mycolumn LIKE '%\_%' ESCAPE '\'
This is one of the ways in which Oracle supports escape characters. Here you define the escape character with the escape keyword. For details see th...
Selenium c# Webdriver: Wait Until Element is Present
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This method is now deprecated, you should instead use the property ImplicitWait : Driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(10);
– Samuel Rondeau-Millaire
Mar 31 '17 at 15:17
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What is a “context bound” in Scala?
...lished, but context bounds are preferred over view bounds (view bounds are now deprecated). One suggestion is that a context bound is preferred when you need to transfer an implicit definition from one scope to another without needing to refer to it directly (this is certainly the case for the Cla...
How to find and return a duplicate value in array
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a = ["A", "B", "C", "B", "A"]
a.detect{ |e| a.count(e) > 1 }
I know this isn't very elegant answer, but I love it. It's beautiful one liner code. And works perfectly fine unless you need to process huge data set.
Looking for faster solution? Here you go!
def find_one_using_hash_map(arr...
MVVM in WPF - How to alert ViewModel of changes in Model… or should I?
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If you want your Models to alert the ViewModels of changes, they should implement INotifyPropertyChanged, and the ViewModels should subscribe to receive PropertyChange notifications.
Your code might look something like this:...
TypeScript typed array usage
...ay literal expression:
this._possessions = [];
Of the array constructor if you want to set the length:
this._possessions = new Array(100);
I have created a brief working example you can try in the playground.
module Entities {
class Thing {
}
export class Person {
...
How to find day of week in php in a specific timezone
... Europe/Stockholm to the users time-zone.
$dateTime = new \DateTime(
'now',
new \DateTimeZone('Europe/Stockholm')
);
$day = $dateTime->format('N');
ISO-8601 numeric representation of the day of the week (added in PHP 5.1.0)
1 (for Monday) through 7 (for Sunday)
http://php.net/ma...