Submodule 12.2: JavaScript Objects

In order to iterate over objects' properties we cannot use the classic for loops.

The syntax that allows as to iterate over all the properties of an object is:

for (var key in object)

var key can take any name. 

Example:

var darkChoco = {
cacao:"80%",
milk:"0%",
grams:100,

};

In order to iterate over this object we would write:

 for (var x in darkChoco) {
console.log ( x + ":" + darkChoco[x] );
} 

Exercise

Follow the next link. Right-click, select inspect and view the result in the Console tab. Next, click the "Sources" tab and click the HTML file to see the code:

 for/in Statement