The primitive types (number, string, etc.) are passed by value, but objects are unknown, because they can be both passed-by-value (in case we consider that a variable holding an object is in fact a reference to the object) and passed-by-reference (...
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I know that in JS, objects are passed by reference, for example: function test(obj) { obj.name = 'new name'; } var my_obj = { name: 'foo' }; test(my_obj); alert(my_obj.name); // new name But why doesn't the below work:...
i have a object, which is getting passed in many different functions inside a function. these functions may or may not change the value of the object, but if they do change it, then i would like to get the latest changes on object. following is wh...
I want to create a string and pass it by reference such that I can change a single variable and have that propagate to any other object that references it. Take this example: function Report(a, b) { this.ShowMe = function() { alert(a + "...
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I have a array like this: users = [{id:1, name:'name1'},{id:2, name:'name2'}] How could I get a reference to the item {id:2, name:'name2'}, so I can change it is name property, like: user = get_item(users, 'id', 2)...
I'm trying to have both the variables "my_a" and letters.a point to the same object. //i want letters.a to reference (point to) my_a, not be a copy... //expected output should be: letters.a = c //made variables into Objects.. but didn...
In Javascript The Good Parts, it states: So I would expect the following code example to output 1001 since "objects are never copied but passed around by reference", so why does it output 0000? var page_item = { id_code : 'welcome&...
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