let tobj = [
{a:"",b:2},
{a:"joke",b:8},
{a:"",b:23},
] code is as above, and the decision condition is as follows: if the an of an element in tobj has a value, then query whether the an of other elements also has a value. As long as the value of an of an element is empty, event 1 is executed. If the an of all elements in the array has a value, or there is no value, then event 2 is executed.
the first condition is to cycle through all the elements to see if the an of any elements has a numerical value, and then make the next judgment and ask for advice.