如何检查给定的数据表是否已呈现

Question

I have a function that selects all checkboxes ( selecionarTodos() ) on all pages of a table ( #tbTarefas ). However, I want to use the same method to select all checkboxes in other tables, which have the same structure, only with different id .

I would like to check if a certain table is rendered at that moment on screen. Something like that.

Before

function selecionarTodos(source) {
        const tabela = $("#tbTarefas").DataTable();
        let celulasCheckbox = tabela.column(0).nodes();

        for (let i = 0; i < celulasCheckbox.length; i++) {
            let checkbox = celulasCheckbox[i].querySelector('input[type="checkbox"]');

            checkbox.checked = source.checked;
        }
    }

After ( Initial thinking )

function selecionarTodos(source) {
        const tabelaTarefas = $("#tbTarefas").DataTable();
        const tabelaAtendimento = $("#tbPendentes").DataTable();

        if (tabelaTarefas) {
            let CheckboxTarefasTd = tabelaTarefas.column(0).nodes();

            for (let i = 0; i < CheckboxTarefasTd.length; i++) {
                let checkbox = CheckboxTarefasTd[i].querySelector('input[type="checkbox"]');

                checkbox.checked = source.checked;
            }
        }
        else if (tabelaAtendimento) {
            let CheckboxAtendimentoTd = tabelaAtendimento.column(0).nodes();

            for (let i = 0; i < CheckboxAtendimentoTd.length; i++) {
                let checkbox = CheckboxAtendimentoTd[i].querySelector('input[type="checkbox"]');

                checkbox.checked = source.checked;
            }
        }
    }

Answer 1

Datatables has a callback for once initialization has been completed.

$('#tbTarefas').on( 'init.dt', function () { 

}

Or on each redraw use "draw.dt"