JavaScript/Angular 1 - Test if an object is defined and empty it if true

Question

I want to test if an object is empty, then empty it but only if true

With something like that :

angular.isDefined(this.project.motivation.description) = {}

The problem is that angular.isDefined return a boolean. Is that it has a method with good practice without used the conditions if, with Lodash or ES2015 for example ?

Why does it have to be fancy like that? Readability is more important that not using an `if` condition — Nico Van Belle, Jul 12 '17 at 14:10
You want to empty an object, but only if it is empty?! How is that? If it is empty, why would you empty it (if it is already is empty)? What am I missing here? — lealceldeiro, Jul 12 '17 at 14:11
OK, the title suggests that, but not so the body of the question, you should edit it. — lealceldeiro, Jul 12 '17 at 14:15
Sagi, maybe this answer help you: [How do I test for an empty JavaScript object?](https://stackoverflow.com/questions/679915/how-do-i-test-for-an-empty-javascript-object/) — Anatolii Kozanbaiev, Jul 12 '17 at 14:38

score 1 · Accepted Answer · answered Jul 12 '17 at 14:24

1

You can do it using Lodash with _.defaultTo() function:

var f = {a: "test"}
f = _.defaultTo(f, {})

If the object is undefined, the function return the empty object.

answered Jul 12 '17 at 14:24

Carlos Franco

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JavaScript/Angular 1 - Test if an object is defined and empty it if true

1 Answers1