Can't understand the logic behind.

Dear all,

Please help me with the logic behind the sort() with call back function.

Code:

>[1,3,12,5,23,18,7].sort();

which will retu

Code:

<<[1,12,18,23,3,5,7]

In order to sort the numbers correctly a callback function is used.

Code:

function compareNumbers(a,b){

return a-b;

}

Code:

>[1,3,12,5,23,18,7].sort(compareNumbers);

which will retu

Code:

<<[1,3,5,7,12,18,23]

I still don't understand the logic how the compareNumbers function sorted this out. Please help.

برچسب: نویسنده: آیلین رضوانی تاريخ: چهارشنبه 22 آذر 1396 ساعت: 18:28