AngularJS Directive Two-Way Data Binding Not Working When Observing Boolean

Question

I have a two-way data binding that is not altering the value of the variable sent to the directive.

My directive watches for a trigger and gives focus to the associa

Answer 1

Directive create a scope. when you pass parameter to scope, object passed by reference and boolean (and number, string...) passed by value.

For example:

function changeToFalse(bool) {
    bool= false;
    console.log(bool);  // false
}


function changeObjToFalse(obj) {
    obj.bool= false;
    console.log(obj.bool);  // false
}

var obj = {bool : true};

changeToFalse(obj.bool);
console.log(obj.bool);  // true
changeObjToFalse(obj);
console.log(obj.bool); // false

See also same question - two way binding not working with ng-repeat.