let array_obj = [
{ name: 'Matrix', age: 58, language: "node.js" },
{},
{ name: 'R2D2', age: 90, language: "java" },
{ name: 'Machina', age: 49, language: "python" },
{}
];
array_obj = array_obj.filter(value => Object.keys(value).length !== 0);
console.log(array_obj);
/*
run:
[
{ name: 'Matrix', age: 58, language: 'node.js' },
{ name: 'R2D2', age: 90, language: 'java' },
{ name: 'Machina', age: 49, language: 'python' }
]
*/