const array_obj = [
{ name: 'Matrix', age: 58, language: "TypeScript" },
{ name: 'R2D2', age: 90, language: "c#" },
{ name: 'Machina', age: 49, language: "php" }
];
array_obj.forEach(object => {
delete object.age;
});
console.log(array_obj);
/*
run:
[{
"name": "Matrix",
"language": "TypeScript"
}, {
"name": "R2D2",
"language": "c#"
}, {
"name": "Machina",
"language": "php"
}]
*/