html IndexOf IE8修复

Posted 2021-05-11

<!--[if lte IE 8]>
	<script>
	    if (!Array.prototype.indexOf) {
	        Array.prototype.indexOf = function(obj, start) {
	            for (var i = (start || 0), j = this.length; i < j; i++) {
	                if (this[i] === obj) {
	                    return i;
	                }
	            }
	            return -1;
	        };
	    }

	    if(typeof String.prototype.trim !== 'function') {
	        String.prototype.trim = function() {
	            return this.replace(/^\s+|\s+$/g, '');
	        };
	    };
	</script>
	<![endif]-->