in javascript when calling any method then

[Member 4659001]

in my project at one place sthing like this is been writen SetHistoryHandler( { ScreenId: SCREEN_CONTACTS, Entity: PART_NEW_GROUP, Contacts: contacts } ); i coule not understand what does this ':' doing when passing arguments for ex. one argument is Entity: PART_NEW_GROUP ,it contain ':' after Entity

Raghvendra

[Perspx]

That is a Javascript object literal. It is similar to an array list, except the members are enclosed in curly brackets and each member is defined explicitly with a name, followed by a colon, and each member is separated with a comma, not a semi-colon. Once an object literal has been defined, then each member can be accessed with Object literal variable name.Member name For example, if you do this:

var fruit = {apples: 1,
bananas: 2,
oranges: 3,
grapes: 20
};

This creates an object with the members apples, bananas, oranges and grapes with values of 1, 2, 3 and 20 respectively. The members can be accessed like so:

fruit.apples; //returns 1
fruit.bananas; //returns 2
fruit.oranges; //returns 3
fruit.grapes; //returns 20

Object literals are especially useful in argument lists, as it means that the arguments don't have to all be present, or have a set order to be defined in. Regards, --Perspx

"I've got my kids brainwashed: You don't use Google, and you don't use an iPod." - Steve Ballmer
"Some people have told me they don't think a fat penguin really embodies the grace of Linux, which just tells me they have never seen an angry penguin charging at them in excess of 100mph." - Linus Torvalds

modified on Sunday, September 21, 2008 2:57 AM

[Member 4659001]

Thanks, now i cam corelate it in project

Raghvendra

[Member 4659001]

i get it that SetHistoryHandler( { ScreenId: SCREEN_CONTACTS, Entity: PART_NEW_CONTACT } ); var fruit = {apples: 1, bananas: 2, oranges: 3, grapes: 20 }; sounds bit differ in my one { ScreenId: SCREEN_CONTACTS, Entity: PART_NEW_CONTACT } does not sounds some thing like anonimeous structure means it does not have any name so we can refer some where else i mean i could not get it fully when i do compare it, alone it make full sence to me

Raghvendra

[Perspx]

SCREEN_CONTACTS and PART_NEW_CONTACT appear to be variables, so the values of ScreenId and Entity take the value of these variables. Regards, --Perspx

"I've got my kids brainwashed: You don't use Google, and you don't use an iPod." - Steve Ballmer
"Some people have told me they don't think a fat penguin really embodies the grace of Linux, which just tells me they have never seen an angry penguin charging at them in excess of 100mph." - Linus Torvalds

[Member 4659001]

Thanks

Raghvendra