JSOM - Sharepoint -如何在中断继承后删除列表项目上的所有权限？

var context = new SP.ClientContext.get_current();
var web = context.get_web();
var list = web.get_lists().getByTitle('列表名称');
var item = list.getItemById(1); // 假设要操作的列表项 ID 为 1

var roleAssignments = item.get_roleAssignments();
context.load(roleAssignments);

context.executeQueryAsync(function () {
    var enumerator = roleAssignments.getEnumerator();
    while (enumerator.moveNext()) {
        var roleAssignment = enumerator.get_current();
        roleAssignment.deleteObject();
    }

    context.executeQueryAsync(function () {
        console.log('已成功删除列表项目上的所有权限。');
    }, function (sender, args) {
        console.log('删除权限时发生错误：' + args.get_message());
    });
}, function (sender, args) {
    console.log('获取权限分配时发生错误：' + args.get_message());
});