The JavaScript forEach loop is compatible with every web browser except for Internet Explorer

All browsers are working with the loop except for Internet Explorer, which does not seem to support forEach.

Here is the JavaScript code:

function validate() {
    var msg = '';
    var i = 0;

    arr.forEach(
        function validateinfo(){
            if (getRBtnName('yesNo_' + i + '_0' == "" && 'yesNo_' + i + '_0') == "") {
                msg = 'Please select yes/no for all users'
            }
            if (msg == '') {
                return true;
            }
            is++;
        }
    )

    if (msg == '') {
        reloadpage();
    }

    if (msg != '') {
        alert(msg);
        return false;
    }
}


function reloadpage(){
    window.location.reload()
}

The array is being set in the PHP file rather than passed in. It's being set using:

<script type="text/javascript">
    var arr = <?php echo json_encode($arr) ?>;
</script>

Answer №1

To ensure compatibility with older browsers, you can add this MDN shim to the beginning of your scripts:

if ( !Array.prototype.forEach ) {
  Array.prototype.forEach = function(fn, scope) {
    for(var i = 0, len = this.length; i < len; ++i) {
      fn.call(scope, this[i], i, this);
    }
  }
}

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