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interface in javascript

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HandsomeOldGod5355 answered on May 13, 2022 Popularity 10/10 Helpfulness 1/10

answer interface in javascript

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interface in javascript

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-2

// example duck typing method
var hasMethods = function(obj /*, method list as strings */){
    var i = 1, methodName;
    while((methodName = arguments[i++])){
        if(typeof obj[methodName] != 'function') {
            return false;
        }
    }
    return true;
}

// in your code
if(hasMethods(obj, 'quak', 'flapWings','waggle')) {
    //  IT'S A DUCK, do your duck thang
}

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: interface javascript

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Contributed on May 13 2022

HandsomeOldGod5355

0 Answers Avg Quality 2/10

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interfaces in javascript

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In JavaScript, interfaces are not a native language feature like they are in some other languages (e.g., Java or TypeScript). However, you can achieve similar functionality using object structures and documentation. 


const personInterface = {
  firstName: 'string',
  lastName: 'string',
  age: 'number'
};

const person = {
  firstName: 'John',
  lastName: 'Doe',
  age: 30
};

// Check if an object conforms to the interface
function validatePerson(obj) {
  for (const key in personInterface) {
    if (!(key in obj) || typeof obj[key] !== personInterface[key]) {
      return false;
    }
  }
  return true;
}

console.log(validatePerson(person));  // true

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Aug 25 2023

Maximilian Steiger

0 Answers Avg Quality 2/10

interface in javascript

Comment

-1

// example duck typing method
var hasMethods = function(obj /*, method list as strings */){
    var i = 1, methodName;
    while((methodName = arguments[i++])){
        if(typeof obj[methodName] != 'function') {
            return false;
        }
    }
    return true;
}

// in your code
if(hasMethods(obj, 'quak', 'flapWings','waggle')) {
    //  IT'S A DUCK, do your duck thang
}

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: interface inte

Link to this answer
Share Copy Link

Contributed on May 13 2022

HandsomeOldGod5355

0 Answers Avg Quality 2/10

interface in javascript

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