Question

How can this POSSIBLY be happening?

var X = db.getItem('ShowDeleted');
console.log(X);
if (X) {
    console.log(1);
} else {
    console.log(2);
}

In Firebug, I’m getting:

true
1
false
1

As I fire the snippet in question.

Edit: I apologize for using db. in my example. db=localStorage.

Answer 1

As ghik pointed out, your X value is probably being returned as a string. Here is a jsfiddle script that works properly when set as a boolean, and displays your bizarre behaviour when set as a string

//boolean version
var X =true;
console.log(X);
if (X) {
    console.log(1);
} else {
    console.log(2);
}
var X =false;
console.log(X);
if (X) {
    console.log(1);
} else {
    console.log(2);
}
//outputs
true
1
false 
2


//String version
var X ='true';
console.log(X);
if (X) {
    console.log(1);
} else {
    console.log(2);
}
var X ='false';
console.log(X);
if (X) {
    console.log(1);
} else {
    console.log(2);
}
//outputs
true
1
false 
1