JavaScript to implement checkbox selection code _javascript tips

Code:

function Checkall (checknames) {
  var allboxs = Document.getelementsbyname (checknames);
  for (var i = 0; i<allboxs.length;i++) {
    if (allboxs[i].type = = ' checkbox ') {
      if (allboxs[i].checked==false) {
        allboxs[i].checked = true;
      } else{
        allboxs[i].checked = false;}}}

How to use ①

Copy Code code as follows:

<a href= "" onclick= "checkall (' goods ')" > select all </a>

Note: ' Goods ' is the name of all checkbox that needs to be checked

How to use ②

<a href= "" id= "Checkall" > select all </a>
<script>
document.getElementById (' Checkall '). onclick = function () {
  checkall (' goods ')
};
</script>

Note: ' Goods ' is the name of all checkbox that needs to be checked

The above 2 kinds of methods are summarized in this article all the content, I hope you can like, if there is a better way, also invited the small partners to sue, this article continues to update.