Javascript Array Destructuring Assignment And Null Value

I'm using an external service getListOfItemsFromServiceA which accepts an id (of user) and returns a list of 5 items (exactly 5) associated to this user. I used Array destructuring

Solution 1:

Do this:

[item1, item2, item3, item4, item5] = exampleResult || [];

Solution 2:

You can add a fallback if exampleResult is null :

var item1, item2, item3, item4, item5;
var exampleResult = null;
[item1, item2, item3, item4, item5] = exampleResult || [];
console.log(item1, item2, item3, item4, item5);

This produces undefined, undefined, undefined, undefined, undefined.

You can also set default values to the destructured variables :

var item1, item2, item3, item4, item5;
var exampleResult = null;
[item1="", item2="", item3="", item4="", item5=""] = exampleResult || [];
    console.log(item1, item2, item3, item4, item5);