Final answer:
To log three items from an array using a 'for' loop in JavaScript, you create a loop with an initializer, a condition, and an iterator. Within the loop, you use console.log to print each array element to the console.
Step-by-step explanation:
The question is regarding how to use a 'for' loop to log items from an array to the console in a programming language such as JavaScript. A 'for' loop is a control flow statement that allows code to be executed repeatedly based on a condition. When working with arrays, a common task is to iterate over the array and perform operations on each element.
Example of a 'for' loop:
const animals = ['bear', 'deer', 'owl'];
for (let i = 0; i < animals.length; i++) {
console.log(animals[i]);
}
In this example, 'animals' is an array containing three strings. The 'for' loop starts with an initializer (let i = 0), which sets the starting point of the loop. The condition (i < animals.length) is checked before each iteration, and as long as it is true, the block of code inside of the loop executes. In this case, console.log is used to print each element of the array to the console. The iterator (i++) is used to increment the loop variable, ensuring that the loop eventually ends when the end of the array is reached.