Javascript: prototype of Number

Posted by eugene y on Stack Overflow See other posts from Stack Overflow or by eugene y
Published on 2010-03-08T10:43:01Z Indexed on 2010/03/08 10:51 UTC
Read the original article Hit count: 699

Filed under:

JavaScript

|

number

|

prototype

var x= 1;  
Number.prototype.test = function () { return this };  
x.test() === x.test() // false

Why does the === test return false?

© Stack Overflow or respective owner

Related posts about JavaScript

CHAT ROOMs 7 by 6

as seen on Stack Overflow - Search for 'Stack Overflow'
I am looking for chatroom on one page with 7 loggedin users and 6+rows for say 42 users.these users will keep on adding wthnew users.Need urgent help.A PRETTY UNUSUAL Q FOR MOST OF U.What is MORE REQ new features: Usernames are unique to users currently chatting You can see a "currently chatting"… >>> More
Integrating JavaScript Unit Tests with Visual Studio

as seen on Stephen Walter - Search for 'Stephen Walter'
Modern ASP.NET web applications take full advantage of client-side JavaScript to provide better interactivity and responsiveness. If you are building an ASP.NET application in the right way, you quickly end up with lots and lots of JavaScript code. When writing server code, you should be writing… >>> More
Has Javascript developed beyond what it was originally designed to do?

as seen on Programmers - Search for 'Programmers'
I've been talking with a friend about the purpose of Javascript, when and how it should be used, etc. He quoted that: JavaScript was designed to add interactivity to HTML pages [...] JavaScript gives HTML designers a programming tool HTML authors are normally not programmers… >>> More
PHP, javascript, single quote problems with IE when passing variable from ajax post to javascript fu

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi! I have been trying to get this to work for a while, and I suspect there's an easy solution that I just can't find. My head feels like jelly and I would really appreciate any help. My main page.php makes a .post() to backend.php and fetches a list of cities which it echoes in the form of: <li… >>> More
Javascript in XSL that is loaded by Javascript

as seen on Stack Overflow - Search for 'Stack Overflow'
Is there anyway to have javascript run when a XSL sheet has been applied to an XML file by Javascript? I am using a JQuery plugin to apply the sheet to the xml but the javascript that is located inside of the XSL file will not run. I put the Javascript at the bottom of the file and it still does… >>> More

Related posts about number

php find number of occurances (number of times)

as seen on Stack Overflow - Search for 'Stack Overflow'
can someone help with this? I need the following function to do this... $x = 'AAAABAA'; $x2 = 'ABBBAA'; function foo($str){ //do something here.... return $str; } $x3 = foo($x); //output: A4B1A2 $x4 = foo($x2);//output: A1B3A2 >>> More
Simple number-to-number (or number-to-hex) encryption algorithm that minimizes # of characters

as seen on Stack Overflow - Search for 'Stack Overflow'
I need to encrypt a number and I and this encrypted value will be given to a customer ask a key so I want to minimize the number of digits and make them all printable. So I'd like the result to be either all number or all Hex characters. The current encryption method I'm using (for non numbers)… >>> More
Invalid parameter number: number of bound variables does not match number of tokens

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a table: 'objects' with few columns: object_id:int, object_type:int, object_status:int, object_lati:float, object_long:float My query is : $stmt = $db->query('SELECT o.object_id, o.object_type, o.object_status, o.object_lati, o.object_long FROM objects o WHERE o.object_id = 1'); $res =… >>> More
T-SQL - Left Outer Joins - Filters in the where clause versus the on clause.

as seen on Stack Overflow - Search for 'Stack Overflow'
I am trying to compare two tables to find rows in each table that is not in the other. Table 1 has a groupby column to create 2 sets of data within table one. groupby number ----------- ----------- 1 1 1 2 2 1 2 2 2 4 Table 2 has only one column… >>> More
File system concepts (df command)

as seen on Super User - Search for 'Super User'
I'm finding it difficult to understand some stuffs about the df command. Suppose I type df and I have the following output Filesystem 1k-blocks Used Avail Capacity Mounted on /dev/da0s1 some number some number number percentage /win /dev/da0s2 some number some… >>> More