title: Is it possible to set the tickboxes selected by default in a DT datatable?
body: <p>I would like to ask if it is possible to have the tickboxes of all the rows selected by default -instead of deselected- in a DT datatable.</p>
  
  <pre><code>library(DT)
  library(tidyverse)
  dataTableOutput("irisTable")
  output$irisTable &lt;- renderDataTable(
      iris %&gt;% rowid_to_column("Row") %&gt;% mutate(Row = ""),
      rownames = FALSE,
      extensions = "Select",
      options = list(
          columnDefs = list(list(className = "select-checkbox", targets = 0, orderable = FALSE)),
          select = list(style = "multi", selector = "td:first-child")
          ))
  </code></pre>