jquery--checkbox select all / uncheck all

<input type="checkbox" id="boxid" onclick="setAllNo()" />全选/全不选

# 渲染多选数据
for (i = 0; i < data.length; i++) {
    envHtml += '<input type="checkbox" name="env" value="'+data[i]['id']+'"/>' +data[i]["name"]
 }

function setAllNo() {
    var box = document.getElementById("boxid");
    var loves = document.getElementsByName("env");
    if (box.checked == false) {
        for (var i = 0; i < loves.length; i++) {
            loves[i].checked = false;
        }
    } else {
        for (var i = 0; i < loves.length; i++) {
            loves[i].checked = true;
        }
    }
}