JavaScript 间隔循环

Question

循环如何像这样进行:

我的变量是这样的:

var array = [1,2,3,4,5,6,7,8,9,10]
var maximunNumbers = 6
var eachRound = 2

我想打印这样的数字:

In round 1 : print array[0] and array[1]
In round 2 : print array[2] and array[3]
In round 3 : print array[4] and array[5]
In round 4 : print array[0] and array[1] //numbers repeat themselves from here
In round 5 : print array[2] and array[3]
and so on ...

Answer 1

var array = [1,2,3,4,5,6,7,8,9,10];
var maximunNumbers = 6;
var eachRound = 2;


var i, k;
for( i = 0; i < 10; ++i ) {
    var result = 'In round ' + i + ' : ';
    for( k = 0; k < eachRound; ++k ) {
        var array_index = ( ( i * eachRound ) + k ) % maximunNumbers;
        result += '  array[' + array_index + '] = ' + array[array_index];
    }
    console.log( result );
}

In round 0 : array[0] = 1 array[1] = 2

In round 1 : array[2] = 3 array[3] = 4

In round 2 : array[4] = 5 array[5] = 6

In round 3 : array[0] = 1 array[1] = 2

In round 4 : array[2] = 3 array[3] = 4

In round 5 : array[4] = 5 array[5] = 6

In round 6 : array[0] = 1 array[1] = 2

In round 7 : array[2] = 3 array[3] = 4

In round 8 : array[4] = 5 array[5] = 6

In round 9 : array[0] = 1 array[1] = 2

https://jsfiddle.net/shctc5eu/