comparable value of empty string in numeric typescript code example
Example 1: isnull or empty typescript
if(typeof namedProperty!='undefined' && namedProperty){
return this.namedProperty;
}
Example 2: typescript if string is null or empty
function empty(e) {
switch (e) {
case "":
case 0:
case "0":
case null:
case false:
case typeof(e) == "undefined":
return true;
default:
return false;
}
}
empty(null) // true
empty(0) // true
empty(7) // false
empty("") // true
empty((function() {
return ""
})) // false