Array Object. The Array object is used to store multiple values in a single variable​: var cars = ["Saab", "Volvo", "BMW"];. Try it Yourself». Array indexes are. Objects in JavaScript are passed by reference. When more than one variable is set to store either an object, array or function, those variables. Storing by value vs Storing by reference in Javascript (as of ECMAScript Ed. 3) are Object, Array, Function, Date, Error and RegExp.

: Javascript store object reference in array

United bank of india kanpur branch	When we assign and use a reference-type variable, what we write and see is:. Reassigning a reference variable replaces the old reference. Objects are assigned and copied by reference. This happens because arrays are reference types in JavaScript. We can use a for loop to iterate through the elements of the array, and a nested for-in loop to copy the properties of each object:. When we pass primitive values into a function, the javascript store object reference in array copies the values into its parameters. After the function returns, the changes it makes persist in the outer scope.
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