Lodash - keys method

Syntax

_.keys(object)

Creates an array of the own enumerable property names of object.

Arguments

• object (Object) − The object to query.

Output

• (Array) − Returns the array of property names.

Example

var _ = require('lodash');
 
function Foo() {
   this.a = 1;
   this.b = 2;
}
Foo.prototype.c = 3;
var result = _.keys(new Foo);
console.log(result);

Save the above program in tester.js. Run the following command to execute this program.

Command

\>node tester.js

Output

[ 'a', 'b' ]