Question

I have a problem to manipulate checkbox values. The ‘change’ event on checkboxes returns an object, in my case:

{"val1":"member","val2":"book","val3":"journal","val4":"new_member","val5":"cds"}

The above object needed to be transformed in order the search engine to consume it like:

{ member,book,journal,new_member,cds}

I have done that with the below code block:

var formcheckbox = this.getFormcheckbox();
formcheckbox.on('change', function(checkbox, value){

                var arr=[];

                for (var i in value) {
                    arr.push(value[i])
                };

                var wrd = new Array(arr);
                    var joinwrd = wrd.join(",");
                        var filter = '{' + joinwrd + '}';

                        //console.log(filter);

                //Ext.Msg.alert('Output', '{' + joinwrd + '}');

                });

The problem is that I want to the “change” event’s output (“var filter” that is producing the: { member,book,journal,new_member,cds}) to use it elsewhere. I tried to make the whole event a variable (var output = “the change event”) but it doesn’t work.

Maybe it is a silly question but I am a newbie and I need a little help.

Thank you in advance,

Tom

Answer 1

You could make filter a global variable and use it where ever you need it.

// global variable for the search filter
var filter = null;

var formcheckbox = this.getFormcheckbox();
formcheckbox.on('change', function(checkbox, value){
    var arr = [],
    i,
    max;

    // the order of the keys isn't guaranteed to be the same in a for(... in ...) loop
    // if the order matters (as it looks like) better get them one by one by there names
    for (i = 0, max = 5; i <= max; i++) {
        arr.push(value["val" + i]);
    }

    // save the value in a global variable
    filter = "{" + arr.join(",") + "}";

    console.log(filter);
});