我已经编写了此代码，但未显示任何输出。 为什么会这样呢？

Question

I have written this code but I am completely not sure the way I did is correct. Is there anyone that can give me some guidance?

• Create a variable named numbers and assign an empty array to it.
• Using a for-loop and the Array.push() method, insert the numbers 0 to 9 into the array you named numbers.
• Test that you used the Array.push() method correctly by console logging the first item in the array.
• Console log the last item in the array.
• Create another variable named car and assign an empty object to it.
• Give the object a property called colour and assign it the value of "black" .

 var numbers = []; for (var i=0; i < 10; i++){ numbers.push(i); console.log(i[1]) console.log(i[9]) } var car = {}; 

Answer 1

var numbers = [];

for(var i=0; i<10; i++) {
    numbers.push(i)
}

console.log(numbers[0]);

var lastIndex = numbers.length - 1;

console.log(numbers[lastIndex]);

var car = {};
car.colour = 'black';

Answer 2

You have pushed numbers to an array numbers , but after this you have mixed up variables numbers and i . Variable i is not an array. Except this your console.log is in the for loop and this is mistake too.

I have corrected your code:

 var numbers = []; for (var i = 0; i < 10; i++){ numbers.push(i); } console.log(numbers[1]); //1 console.log(numbers[9]); //9 var car = {}; car.colour = 'black'; console.log(car.colour); //black