Answers for "js remove object by attribute"

remove attribute javascript

document.getElementsByTagName("H1")[0].removeAttribute("class");

how to remove a property from an object in javascript

var person = {
        name: "Harry",
        age: 16,
        gender: "Male"
    };
    
    // Deleting a property completely
    delete person.age;
    alert(person.age); // Outputs: undefined
    console.log(person); // Prints: {name: "Harry", gender: "Male"}

nodejs delete object key

delete obj.firstname;