Dealing with adding up optional values from v-model in Vue.js can be a challenging task

Within this function, I need to display the remaining amount.

 remainingAmount: function() {
            return parseFloat(this.sumAmount) - (parseFloat(this.cash) + parseFloat(this.kNet) + parseFloat(this.kNetOnline));
        }

The three parameters cash, kNet, and kNetOnline come from v-model. If any of them are null, the result will be NaN! How can I make these v-model inputs optional in this function?

Answer №1

After searching extensively, I couldn't find any optional function in JavaScript, so I had to tackle the issue using conditions:

var x = this.money ? parseFloat(this.money) : 0;
var y = this.onlineBanking ? parseFloat(this.onlineBanking) : 0;
var z = this.bankTransfer ? parseFloat(this.bankTransfer) : 0;

I have a feeling that this solution may not be efficient for handling large amounts of data.

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