I know there is already an accepted answer for this but I thought I'd document my idea somewhere. Please [people] feel free to poke holes in this idea, as I'm not sure if it is the best solution... but I just put this together a few minutes ago:

Object.prototype.push = function( key, value ){ this[ key ] = value; return this; } 

You would utilize it in this way:

var obj = {key1: value1, key2: value2}; obj.push( "key3", "value3" ); 

Since, the prototype function is returning this you can continue to chain .push's to the end of your obj variable: obj.push(...).push(...).push(...);

Another feature is that you can pass an array or another object as the value in the push function arguments. See my fiddle for a working example: http://jsfiddle.net/7tEme/

I know there is already an accepted answer for this but I thought I'd document my idea somewhere. Please [people] feel free to poke holes in this idea, as I'm unsure if it is the best solution. I just put this together a few minutes ago:

Object.prototype.push = function( key, value ){ this[ key ] = value; return this; } 

You would utilize it in this way:

var obj = {key1: value1, key2: value2}; obj.push( "key3", "value3" ); 

Since, the prototype function is returning this you can continue to chain .push's to the end of your obj variable: obj.push(...).push(...).push(...);

Another feature is that you can pass an array or another object as the value in the push function arguments. See my fiddle for a working example: http://jsfiddle.net/7tEme/