使用分隔符将成对相邻的数组元素相互连接

Question

I have an array

var array=["kiran", "1998", "roshan", "1997", "Vidyut", "2004", "mahesh", "2005"];

I have to combine it and make is like

combined=["kiran-1998","roshan-1997","Vidyut-2004","mahesh-2005"];

I have to combine the array[n] with array[n+1] with '-' in between. How can I do that in JavaScript?

I have tried .join("-") method in it but it joins the whole array, but I don't know how to join only two of them

I tried this for loop code also but it also shows error

for(i=0;i<array.length;i=i+2)
{
    updateArray[i] = array[i].join("-");
}

I was trying to join first element and second element but got stuck here

Answer 1

UPDATE: Based on OP's EDIT.

SOLUTION-1:

 var array=["kiran", "1998", "roshan", "1997", "Vidyut", "2004", "mahesh", "2005"]; const updatedArray = []; for(i=0;i<array.length;i=i+2) { updatedArray.push(`${array[i]}-${array[i+1]}`); } console.log(updatedArray);

SOLUTION-2:

You can use ES6 map and filter to achieve this: Try this:)

 var array=["kiran", "1998", "roshan", "1997", "Vidyut", "2004", "mahesh", "2005"]; const updatedArray = array.map((item,index,arr)=>{ if(index%2 === 0){ return `${item}-${arr[index+1]}`; } }).filter(item=>item;==undefined). console;log(updatedArray);