GlideRecord Pass By Reference Demo

Have you ever needed help understanding why GlideRecord.field_name and GlideRecord.getValue('field_name') can behave differently? This is a simple script that demonstrates why it's important to use getters, especially when working with arrays. Simply run it in your browser console.

var obj = {

    field: {

        value: 0

    },

    next: function () {

        if (obj.field.value < 10) {

            obj.field.value++;

            return true;

        }

        return false;

    },

    getValue: function (field_name) {

        if (obj.hasOwnProperty(field_name) && obj[field_name].hasOwnProperty('value')) {

            return obj[field_name].value.toString();

        }

        else {

            return '';

        }

    }

};

var refarr = [];

var valarr = [];

while (obj.next()) {

    refarr.push(obj.field);

    valarr.push(obj.getValue('field'));

}

console.log(refarr);

console.log(valarr);