Return object using classnames and switch statement-CodePudding

So I have an object build out that has a bunch of methods inside, I want to be able to narrow down some methods and see if there are other ways to do thing, so I will go into more description below:

So I have the following method which returns me a bunch of class names:

function class_names() {
    return [
        'optanon-category-C0001',
        'optanon-category-C0002',
        'optanon-category-C0003',
        'optanon-category-C0004',
        'optanon-category-C0005'
    ];
}

Now I have another method which basically outputs me a string based on the classname passed inside the parameter:

function classname_output(class_name) {
    let output = '';
    switch (class_name) {
        case 'optanon-category-C0001':
            output = 'Strictly Necessary Cookies';
            break;
        case 'optanon-category-C0002':
            output = 'Performance Cookies';
            break;
        case 'optanon-category-C0003':
            output = 'Functional Cookies';
            break;
        case 'optanon-category-C0004':
            output = 'Targeting Cookies';
            break;
        case 'optanon-category-C0005':
            output = 'Social Media Cookies';
            break;
        default:
            output = 'No cookies match the specified class.';
            break;
    }

    return output;
}

Is there a way that I can infuse the two methods into a single method with an object return and then target the object key?

CodePudding user response：

You can have object (dictionary) that maps class names (key) to string (value), and then have a function to return the value if the key exists in the dictionary, or a default "Doesn't exist" string if it doesn't.

const dict = {
  'optanon-category-C0001': 'Strictly Necessary Cookies',
  'optanon-category-C0002': 'Performance Cookies',
  'optanon-category-C0003': 'Functional Cookies',
  'optanon-category-C0004': 'Targeting Cookies',
  'optanon-category-C0005': 'Social Media Cookies'
};

function check(dict, className) {
  return dict[className] ?? 'No cookies match the specified class.';
}

console.log(check(dict, 'optanon-category-C0003'));
console.log(check(dict, 'optanon-category-C0005'));
console.log(check(dict, 'optanon-category-C0000'));

Additional documentation

Nullish coalescing operator