Combining two simple scripts

Question

How can I modify the script below so that it alerts not only when the field is empty, but when the field is empty or contains less than 10 digits (it can contain anything, not only digits)?

  if (myform.mytextinput.value=="")
  alert ('Please enter something!");

A good script that checks for ten digits is this:

  var input_dg = document.getElementById("mytextinput");
  var text_dg = input_dg.value;
  var totalNrOfDigits = 0;
  for(var i = 0; i < text_dg.length; i++){
  if(/\d/.test(text_dg[i])){
  totalNrOfDigits++;
  }
  }
  alert ('Please enter at least 10 digits!');

I just need to "paste" the second script in the first, but I lack the know-how. Both scripts are inside a large form validation script...

Answer 1

Just use ||, the OR operator:

if (myform.mytextinput.value=="" || myform.mytextinput.length < 10)

To count the number of digits in a string I recommend this code (From this SO answer):

var totalNrOfDigits = myform.mytextinput.replace(/[^0-9]/g,"").length;

// And now combine both checks:
if (myform.mytextinput.value=="" || totalNrOfDigits < 10){
    // Alert the user
}

If you want to use the same code you were using you only need to replace the first part:

var input_dg = document.getElementById("mytextinput");
var text_dg = input_dg.value;
var totalNrOfDigits = 0;
for(var i = 0; i < text_dg.length; i++){
    if(/\d/.test(text_dg[i])){
       totalNrOfDigits++;
    }
}

if (myform.mytextinput.value=="" || totalNrOfDigits < 10){
    // Alert the user
}

Answer 2

Try this using the OR(||):

if (myform.mytextinput.value=="" || myform.mytextinput.length < 10)