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How to convert a string to an integer in JavaScript?
... // so you get a decimal number even with a leading 0 and an old browser ([IE8, Firefox 20, Chrome 22 and older][1])
unary plus
if your string is already in the form of an integer:
var x = +"1000";
if your string is or might be a float and you want an integer:
var x = Math.floor("1000.01"); //...
Django admin: how to sort by one of the custom list_display fields that has no database field
...f, obj):
return obj.order__count
number_of_orders.admin_order_field = 'order__count'
This way you only annotate inside the admin interface. Not with every query that you do.
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im...
What does a tilde do when it precedes an expression?
...rand.
For example, if your number was 1, its binary representation of the IEEE 754 float (how JavaScript treats numbers) would be...
0011 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
So ~ converts its operand to a 32 bit integer (bitwise operators in JavaScript do t...
ng-options with simple array init
...ee a working example here:
http://plnkr.co/edit/xEERH2zDQ5mPXt9qCl6k?p=preview
The trick is that AngularJS writes the keys as numbers from 0 to n anyway, and translates back when updating the model.
As a result, the HTML will look incorrect but the model will still be set properly when choosing a ...
JPA EntityManager: Why use persist() over merge()?
...n entity instance, adds it to the context and makes that instance managed (ie future updates to the entity will be tracked).
Merge returns the managed instance that the state was merged to. It does return something what exists in PersistenceContext or creates a new instance of your entity. In any c...
Entity Framework rollback and remove bad migration
...w (fixed) migration and run Update-Database, even the bad migration is applied.
8 Answers
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What are five things you hate about your favorite language? [closed]
...owever, it is magnificently better than Java.
– wheaties
Dec 19 '09 at 21:16
10
+1 for the prolif...
Copy a stream to avoid “stream has already been operated upon or closed”
...
I think your assumption about efficiency is kind of backwards. You get this huge efficiency payback if you're only going to use the data once, because you don't have to store it, and streams give you powerful "loop fusion" optimizations that let you flow the ...
Error in Swift class: Property not initialized at super.init call
...heck 1 “A designated initializer must ensure that all of the
“properties introduced by its class are initialized before it
delegates up to a superclass initializer.”
Excerpt From: Apple Inc. “The Swift Programming Language.” iBooks.
https://itunes.apple.com/us/book/swift-program...
Calling Python in Java?
...'18 at 12:59
Mauricio Gracia Gutierrez
7,41444 gold badges4949 silver badges7474 bronze badges
answered Jan 17 '12 at 17:31
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