How to Clear Contents of an observableArray That was Populated from Previous Visits to a View

Question

I have a Single Page Application that uses knockout for the data binding. The CAApproval.html view in my single page application has an observeablearray named AllCertificates i

Answer 1

Just set it equal to nothing (allCertificates([])) in your activate function, which is called each time your view model loads -

function(logger, system, router, CertificateDataService) {
    var allCertificates = ko.observableArray();

var activate = function () {
    allCertificates([]);
    // go get local data, if we have it
    return SelectAllCerts(),SelectMyCerts(), GetCertificateDetails(), GetDDABankNums();
};

var vm = {
    activate: activate,
    allCertificates: allCertificates,
    SelectAllCerts: SelectAllCerts
});