In the plain javascript function. Both the values, min_chk and max_chk are true, but the if function still shows the alert. not able to figure why?
function Checkit(m,n){
return m>n;
}
var min_chk = Checkit(a,X);
var max_chk = Checkit(b,Y);
if ((min_chk === 'true') && (max_chk === 'true')){
...
} else {
alert('invalid range');
}
The boolean true
is not the same as the string 'true'
. Remove the quotes.
The ===
operator returns false
if the operands on both sides have different types. The boolean true
and the string "true"
have different types.
You should change your check just to
if (min_chk && max_chk)
Since min_chk
and max_chk
are already booleans, you don't need to compare them directly with true
.
Get rid of the '' around true
function Checkit(m, n) {
return m > n;
}
var min_chk = Checkit(a, X);
var max_chk = Checkit(b, Y);
if ((min_chk === true) && (max_chk === true)) {...
} else {
alert('invalid range');
}
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