How to check whether specific items inside an array have a value? Javascript

Question

I have a function which gets values from elements:

function getTransactionValues() {
    var o = {};
    o.reservations        = [];
    $('#custom-headers option:selected').each(function (i, selected) {
        o.reservations[i] = $(selected).val();
    });
    o.amount              = $('input[name=amount-price]').val();
    o.currency_value      = $('input[name=currency-value]').val();
    o.currency_name       = $('.currency_appendto option:selected').html();
    o.actual_amount       = $('input[name=actual-amount]').val();
    o.actual_remaining    = $('input[name=actual-remaining]').val();
    o.funds_arrival_date  = $('input[name=funds-arrival]').val();
    o.paid_to             = $('.paidto option:selected').html();
    o.checkbox            = $('.multi-transaction:checked').map(function () {
        return this.value
    }).get();
    return o;
}

Now i want to check whether amount, actual_amount and funds_arrival_date are filled. if they are i will release the disabled class from a button. i've tried

    var check_review = function () {
    var a = getTransactionValues();
    var options = [a.amount, a.actual_amount, a.funds_arrival_date];

    for(i = 0; i < options.length; i++) {
        if(options[i].length > 0) {
            $('a[name=review_button]').removeClass('disabled');
        }
        else{
            //this array is empty
            alert('There is a problem!');
        }
    }
}

$('.test').click(function() {
    check_review();
});

But it doesn't seems to be working..

@void it removes if the elements inside the array have or does not have values.. like it doesn't check it right — Ilanus
– Ilanus, Commented Nov 30, 2015 at 11:08

Community · Accepted Answer · 2017-05-23 11:44:07Z

1

Remove disabled attribute using JQuery?

Can you please look at above link, I think we should use $('.inputDisabled').prop("disabled", false);

edited May 23, 2017 at 11:44

CommunityBot

11 silver badge

answered Nov 30, 2015 at 11:12

mgopi

591 silver badge4 bronze badges

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

Comments

void · Accepted Answer · 2015-11-30 11:11:50Z

0

Even if a single array element will be non empty then your code will remove the class disabled from the a. To make sure that all the elements of array are non empty and then only you want to remove the class then the way is:

for(i = 0; i < options.length; i++) {
        if(options[i].length > 0) {
            $('a[name=review_button]').removeClass('disabled');
        }
        else{
            $('a[name=review_button]').addClass('disabled');
        }
    }

Or the other way is

var check = true;
for(i = 0; i < options.length; i++) {
        if(options[i].length == 0) {
            check = false;
        }

    }

if(check ) $('a[name=review_button]').removeClass('disabled');

answered Nov 30, 2015 at 11:11

void

36.7k10 gold badges71 silver badges111 bronze badges

Comments

guest271314 · Accepted Answer · 2015-11-30 11:13:02Z

0

Try using Array.prototype.every()

if (options.every(Boolean)) {
  $("a[name=review_button]").removeClass("disabled");
} else {
  // do other stuff
}

answered Nov 30, 2015 at 11:13

guest271314

1

2 Comments

Ilanus Over a year ago

Could you tell me what does Boolean expect?

guest271314 Over a year ago

@IlanHasanov Empty string "" returns false ; e.g., Boolean("") // false , Boolean(".") // true

Collectives™ on Stack Overflow

How to check whether specific items inside an array have a value? Javascript

3 Answers 3

Comments

Comments

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related