push multiple array object into localhost?

问题

(function{
var array = localStorage.getItem('id') || [];
obj = {};
obj.id=1;
array.push(obj);

localStorage.setItem('id',JSON.stringify(array));
}();

why in my localStorage it doesn't insert the obj twice? I'm seeing it replace the existing one.

回答1:

It does replace the existing one.

Try this:

if(localStorage.getItem('id')){  array = JSON.parse(localStorage.getItem('id')) } else {
var array = []; }
obj = {};
obj.id=1;
array.push(obj);

localStorage.setItem('id',JSON.stringify(array));

Everytime you are adding it first gets the localstorage item and then adds to it and puts it back.

来源：https://stackoverflow.com/questions/31353101/push-multiple-array-object-into-localhost