Printing the elements of an array in a repetitive sequence

Question

Printing the elements of an array in a repetitive sequence

var arr = [a, b, c];

In this specific array setup, index 0 corresponds to "a", index 1 corresponds to "b", index 2 corresponds to "c".

console.log(arr[0])  // will output > "a"
console.log(arr[1])  // will output > "b"
console.log(arr[2])  // will output > "c"

Is there a method by which if I call console.log(arr[3]) it would display "a" again, console.log(arr[4]) would show "b", and so on. For example, calling console.log(arr[42]) should give any of the three string values while following the same pattern.

javascript arrays

Answer 1

Answer №1

To simplify, use the modulo operator (%) like so: arr[value % arr.length].

var arr = ['a', 'b', 'c'];

function findValue(val){
return arr[val % arr.length];
}
console.log(findValue(0))
console.log(findValue(1))
console.log(findValue(2))
console.log(findValue(3))
console.log(findValue(4))
console.log(findValue(5))
console.log(findValue(6))
console.log(findValue(42))

Answer 2

To simplify, use the modulo operator (%) like so: arr[value % arr.length].

var arr = ['a', 'b', 'c'];

function findValue(val){
return arr[val % arr.length];
}
console.log(findValue(0))
console.log(findValue(1))
console.log(findValue(2))
console.log(findValue(3))
console.log(findValue(4))
console.log(findValue(5))
console.log(findValue(6))
console.log(findValue(42))

Answer 3

Answer №2

We can create a custom function to determine the correct index.

function findIndex(number){
  return number % 3; // using modulo operator
}
var array = ["apple", "banana", "cherry"];
console.log(array[findIndex(0)]);
console.log(array[findIndex(1)]);
console.log(array[findIndex(2)]);
console.log(array[findIndex(3)]);
console.log(array[findIndex(4)]);
console.log(array[findIndex(5)]);
console.log(array[findIndex(41)]);

Answer 4

We can create a custom function to determine the correct index.

function findIndex(number){
  return number % 3; // using modulo operator
}
var array = ["apple", "banana", "cherry"];
console.log(array[findIndex(0)]);
console.log(array[findIndex(1)]);
console.log(array[findIndex(2)]);
console.log(array[findIndex(3)]);
console.log(array[findIndex(4)]);
console.log(array[findIndex(5)]);
console.log(array[findIndex(41)]);

Answer 5

Answer №3

We may not have exactly what you're seeking, but we do have a solution that fits your needs:

var items = ["x","y","z"];
var displayToThisAmount = function(num){
    var len = items.length;
    for(i=0;i<num;++i)
     {
         console.log(items[i%len])

     }
}

Answer 6

We may not have exactly what you're seeking, but we do have a solution that fits your needs:

var items = ["x","y","z"];
var displayToThisAmount = function(num){
    var len = items.length;
    for(i=0;i<num;++i)
     {
         console.log(items[i%len])

     }
}

Answer 7

Answer №4

By utilizing the % operator, you have the ability to make a function repeat itself as many times as desired.

let items = ['apple','banana','cherry'];

let repeats = 5;

for(var j = 0; j < repeats; j++){
  console.log(items[j%3]);
}

Answer 8

By utilizing the % operator, you have the ability to make a function repeat itself as many times as desired.

let items = ['apple','banana','cherry'];

let repeats = 5;

for(var j = 0; j < repeats; j++){
  console.log(items[j%3]);
}

Printing the elements of an array in a repetitive sequence

Answer №1

Answer №2

Answer №3

Answer №4

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