How can i console.log items from index 1 to 5 in current array? Using Loop
let cars = ["AUDI","BMW","LEXUS","VOLKSWAGEN","FERRARY","PORSCHE"]
const mappedCars=cars.map((item, i) => {
console.log("The current index is: " + i);
console.log("The current element is: " + item);
console.log("\n");
return item; //equivalent to list[index]
});
console.log(mappedCars);With a for loop:
let cars = ["AUDI","BMW","LEXUS","VOLKSWAGEN","FERRARY","PORSCHE"]
for(i = 1; i<cars.length; i++){
console.log("The current index is: " + i);
console.log("The current element is: " + cars[i]);
console.log("\n");
};With for loop you can define the initial condition as well as loop terminating condition.
for ([initialExpression]; [condition]; [incrementExpression])
statement
let cars = ["AUDI","BMW","LEXUS","VOLKSWAGEN","FERRARY","PORSCHE"]
const updated = [];
for (let i=1; i<=5; i++) {
updated.push(cars[i]);
}
console.log(updated);
To do this in a loop for indexes 1 to 5 (inclusive):
let cars = ["AUDI","BMW","LEXUS","VOLKSWAGEN","FERRARY","PORSCHE"]
const filteredCars = [];
for (let i=1; i<=5; i++) {
filteredCars.push(cars[i]);
}
console.log(filteredCars);Without loop you may also use filter() or slice(). See example with filter():
let cars = ["AUDI","BMW","LEXUS","VOLKSWAGEN","FERRARY","PORSCHE"]
const filteredCars=cars.filter((item, i) => i>=1 && i<=5);
console.log(filteredCars);
for (let i = 1; i <=5; i++) seems more appropriate
You can do it with forEach :
let cars = ["AUDI","BMW","LEXUS","VOLKSWAGEN","FERRARY","PORSCHE"];
function repea (element, index) {
console.log(`The current index is: ${index}`);
console.log(`The current element is: ${element}`);
}
cars.forEach(repea);
cars.slice(1,6)console.log(). You should always be thinking of boundary conditions for your code. Please edit your question to describe exactly what you're trying to do and what should happen in unfavourable conditionsfor(var i=1; i<=Math.min(5, cars.length-1); i++) console.log("Index="+i+" Value="+cars[i]);If there are less than two cars, no output. if there are less than 6 cars, output will be less than 5 cars.