[Lab] Javascript 大小事試試 --- object function array綜合練習1

這裡就不囉嗦，直接放code做個記錄。

var bob = {
    firstName: "Bob",
    lastName: "Jones",
    phoneNumber: "(650) 777-7777",
    email: "bob.jones@example.com"
};

var mary = {
    firstName: "Mary",
    lastName: "Johnson",
    phoneNumber: "(650) 888-8888",
    email: "mary.johnson@example.com"
};

var contacts = [bob, mary];

function printPerson(person) {
    console.log(person.firstName + " " + person.lastName);
}

function list() {
var contactsLength = contacts.length;
for (var i = 0; i < contactsLength; i++) {
printPerson(contacts[i]);
}
}

/*Create a search function
then call it passing "Jones"*/

function search(lastName) {
    var contactsLength = contacts.length;
    for (var i = 0; i < contactsLength; i++) {
        if(contacts[i].lastName == lastName)
   printPerson(contacts[i]);
}
}

function add(firstName, lastName, email, phoneNumber){
    var contactsLength = contacts.length;
    var temp = Object();
    /*
    temp.firstName = firstName;
    temp.lastName = lastName;
    temp.email = email;
    temp.phoneNumber = phoneNumber;
    contacts[contacts.length] = temp;
    */
 
    contacts[contacts.length] = {
        firstName: firstName,
        lastName: lastName,
        phoneNumber: phoneNumber,
        email: email
    }
 
}

add("tao","chen","ggg","0921192337");

search("chen");

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使用 constructor時要記得寫 new

在object裏面的function使用this來access自己的property