Changing values of variables in javascript

Question

I am new to this, I want to change the value of a variable when the button is fired. I have an array selectedValues, which contains a status of a project i.e Ready/NotReady.

What I want to do is to change the status to Not Ready if the status is Ready and vice versa.

I want a js function to do this. I was wondering if I could do it like this?

 $scope.changeStatus = function(selectedValue){
    if(selectedValue.status == "Not_Ready")
    selectedValue.status = "Ready"
}

You aren't changing the value of a variable, you're assigning a value to a property of an object (Arrays are Objects). — RobG
– RobG, Commented Jun 22, 2017 at 8:29
I would suggest. use boolean if there are only two cases. then it will become more easier. true for ready and false if not ready — Sibiraj
– Sibiraj, Commented Jun 22, 2017 at 9:20

Lalit Sachdeva · Accepted Answer · 2017-06-22 08:39:50Z

1

$scope.changeStatus = function(selectedValue){
    selectedValue.status == "Not_Ready" ? selectedValue.status = "Ready" : selectedValue.status = "Not_Ready"
}

Try this

answered Jun 22, 2017 at 8:39

Lalit Sachdeva

6,6512 gold badges21 silver badges25 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Big Bad Waffle · Accepted Answer · 2017-06-22 08:59:04Z

1

If you ever add more statuses that you'd like to cycle through, you can do something like this:

$scope.changeStatus = function(selectedValue) {
    var statuses = ['State_A', 'State_B', 'State_C', 'State_D', 'State_E'];

    selectedValue.status = statuses[(statuses.indexOf(selectedValue.status) + 1) % statuses.length];
};

answered Jun 22, 2017 at 8:59

Big Bad Waffle

4042 silver badges7 bronze badges

Comments

Sangwin Gawande · Accepted Answer · 2017-06-22 09:45:25Z

0

You can do it like this as well :

$scope.changeStatus = function(){
    if($scope.selectedValue.status == "Not_Ready"){
        $scope.selectedValue.status = "Ready"
    }else{
        $scope.selectedValue.status = "Not_Ready"
    }
}

edited Jun 22, 2017 at 9:45

answered Jun 22, 2017 at 8:38

Sangwin Gawande

8,2348 gold badges52 silver badges67 bronze badges

5 Comments

Ahsan Hasan Over a year ago

you just added else block in my way of doing. nothing else.

Sangwin Gawande Over a year ago

Yes, and you'll need to as $scope before selected value as well.

Ahsan Hasan Over a year ago

you mean $scope.selectedValue?

Sangwin Gawande Over a year ago

Yes. Only selectedValue will be limited to function, but $scope.selectedValue will be in whole controller

Ahsan Hasan Over a year ago

in the parameter ?

Collectives™ on Stack Overflow

Changing values of variables in javascript

3 Answers 3

Comments

Comments

5 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

5 Comments

Your Answer

Sign up or log in

Post as a guest

Related