JavaScript - find max value in array of arrays

In this article, we would like to show you how to find the maximum value in an array of arrays using JavaScript.

1. Custom method example

// ONLINE-RUNNER:browser;

function findMax(/* many arguments here ... */) {
  function checkEntry(entry) {
    if (entry instanceof Array) {
        return findMax.apply(null, entry);
      }
      return entry;
  }
  if (arguments.length > 0) {
    var result = checkEntry(arguments[0]);
    for (var i = 1; i < arguments.length; ++i) {
      var value = checkEntry(arguments[i]);
      if (value > result) {
        result = value;
      }
    }
    return result;
  }
  return NaN;
}

// Usage example:

console.log(findMax(1, 2, 3, [4, 5, 6],[7, 8, [9, 10]]));

See also

1. JavaScript - Math.max() method example