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Rediscovering JavaScript: ES6, ES7 & ES8

Solution Review: Let's Vote

Understand how to implement a JavaScript function that evaluates voting eligibility by age. Explore input validation, strict mode usage, and conditional logic to return appropriate messages for different age values and data types.

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Solution

Run the code below to see the output.

Javascript (babel-node)
'use strict';
const canVote = function(age) { 
    if(age === 18) {
        return 'yay, start voting'; 
    }
    if(age > 17) {
        return "please vote";
    }
    return "no, can't vote"; 
};
console.log(canVote(12)); 
console.log(canVote("12")); 
console.log(canVote(17)); 
console.log(canVote('@18')); 
console.log(canVote(18)); 
console.log(canVote(28));

Explanation

First, we need to deduce some points from the sample input and output to implement this function. The function takes age as input and returns a string depending upon the value of age.

Deductions

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