Function doesnt see parameter as a array of objects

» javascript » Function doesnt see parameter as a array of objects

By : wet_sand7

Date : November 28 2020, 08:01 AM

this one helps.
So, the problem is that "cosa" "thinks" e isnt a array of objects

code :

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Function parameter: Pointer to array of objects

By : timpark

Date : March 29 2020, 07:55 AM

may help you . In my main function I create an array of objects of a certain class "Menu" , Declaration:

code :

void Function(Menu* a_menus); // Arrays decay to pointers.

Function(menu);

std::vector<Menu> menus;
menus.push_back(Menu("1"));
menus.push_back(Menu("2"));

Function(menus);

void Function(const std::vector<Menu>& a_menus)
{
    std::for_each(a_menus.begin(),
                  a_menus.end(),
                  [](const Menu& a_menu)
                  {
                      // Use a_menu
                  });
}

Function.call taking array-like object , doesnt require the first parameter?

By : BlueCrow

Date : March 29 2020, 07:55 AM

I wish this helpful for you MDN for call() explains it clearly: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/call

code :

var a = function(){return arguments[0] + arguments[1] ; }
console.log(a.call(1,2));

Why do I need the index parameter in a function, when going through objects in an array?

By : Heiko Scheit

Date : March 29 2020, 07:55 AM

To fix the issue you can do Its just design of the map function, May be you don't need the index at this scenario but there might be scenario like, If its 3rd element update the data else do nothing!!. At such scenarios you make use of the index.
You can just neglect it from the function definition if don't require it.

code :

function getFullName(item){
//..
}

Iterating through an array containing objects using a function and a parameter

By : Samita Mahajan

Date : March 29 2020, 07:55 AM

Does that help Simply use Array#find() method like this:

code :

function person(name) {
  return people.find(function(p) {
    return p.name == name;
  });
}
console.log(person("Samantha"));

var people = [{
    name: "Sue",
    surname: "Beckett",
    age: 50
  },
  {
    name: "Bill",
    surname: "Borough",
    age: 44
  },
  {
    name: "Janet",
    surname: "Jupp",
    age: 23
  },
  {
    name: "Peter",
    surname: "Pepper",
    age: 21
  },
  {
    name: "Samantha",
    surname: "Salad",
    age: 17
  }
];

function person(name) {
  return people.find(function(p) {
    return p.name == name;
  });
}
console.log(person("Samantha"));
console.log(Object.values(person("Samantha")));

console.log(Object.values(person("Samantha")));

write a function that takes an array of objects as a parameter and returns an array of the objects' names. then, log tha

By : Surya

Date : March 29 2020, 07:55 AM

I wish this help you I'm working on javascript array and need to write a function that takes the first index of the array below and returns an array of the objects' names. , You could use Array#map to return just the names from each object.