function delay(time) {
return new Promise(resolve => setTimeout(resolve, time));
}
delay(1000).then(() => console.log('ran after 1 second1 passed'));var colors = ["red","blue","green"];
for (var i = 0; i < colors.length; i++) {
console.log(colors[i]);
}var colors = ['red', 'green', 'blue'];
colors.forEach((color, colorIndex) => {
console.log(colorIndex + ". " + color);
});var arr = ["f", "o", "o", "b", "a", "r"];
for(var i in arr){
console.log(arr[i]);
}var arr = [1, 2, 3, 4, 5];
for (var i = arr.length - 1; i >= 0; i--) {
console.log(arr[i]);
}var ar = [1, 2, 3, 4, 5, 6];
ar.length = 4; // set length to remove elements
console.log( ar ); // [1, 2, 3, 4]