How to add new a new property to an object in an array?

This question already has an answer here:

How to append something to an array? 25 answers

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Easiest way to append is either use:

fruits[0]["taste"] = "good";

or:

fruits[0].taste = "good";

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I add an taste element to each object, and fill it with the value "good"+ index of the element . Here is a simple demo:

var fruits = [];
fruits[0] = {name:"apple", stock:"1box"};
fruits[1] = {name:"banana", stock:"2box"};
fruits[2] = {name:"banana", stock:"3box"};
        
for(var index=0;index<fruits.length;index++){

    fruits[index].taste="good "+index;

}

console.log(fruits);

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The easiest way to add a property to existing object for each element in array is to itterate over the array and set the property to the desired value using

element[index].desiredProperty = desiredValue;

For example see following fiddle: https://jsfiddle.net/to70xe4j/1/

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