how to check if string contains digits from 1 to 8 in javascript code example

Example 1: check if a string contains digits js

function hasNumber(myString) {
  return /\d/.test(myString);
}

Example 2: js string have number js

var hasNumber = /\d/;   
      hasNumber.test("ABC33SDF");  //true
      hasNumber.test("ABCSDF");  //false