Question

我正在创建一个页面对象，需要有一个函数来检查是否禁用了一组元素。

我尝试了以下但是它不起作用。

areAllElementsDisabled: function (allElements) {
        return allElements.filter(function (elem) {
            return elem.isEnabled().then(function (isEnabled) {
                return isEnabled;
            });
        }).length===0;
    }

有人可以提出解决问题的方法吗？谢谢！

Answer 1

如果有人遇到类似的问题，我找到了一种适合我的方式：

areAllElementsDisabled: function (allElements) {
            var allElemetsPromises = allElements.map(function(elem){
                return elem.isEnabled();
            });

            return Promise.all(allElemetsPromises).then(function(values){
                return values.every(function(value){
                    return !value;
                })
            });
        }

Answer 2

您可以在过滤后的元素上调用Empty: Empty: end Added F: Node: 'F' (ptr = 0x7fc63fc02750, left = 0x0, right = 0x0) Added F: end Added B: Node: 'F' (ptr = 0x7fc63fc02750, left = 0x7fc63fc02770, right = 0x0) Node: 'B' (ptr = 0x7fc63fc02770, left = 0x0, right = 0x0) Added B: end Added I: Node: 'F' (ptr = 0x7fc63fc02750, left = 0x7fc63fc02770, right = 0x7fc63fc027f0) Node: 'B' (ptr = 0x7fc63fc02770, left = 0x7fc63fc02810, right = 0x7fc63fc02790) Node: 'A' (ptr = 0x7fc63fc02810, left = 0x0, right = 0x0) Node: 'C' (ptr = 0x7fc63fc02790, left = 0x0, right = 0x7fc63fc027b0) Node: 'D' (ptr = 0x7fc63fc027b0, left = 0x0, right = 0x7fc63fc027d0) Node: 'E' (ptr = 0x7fc63fc027d0, left = 0x0, right = 0x0) Node: 'G' (ptr = 0x7fc63fc027f0, left = 0x0, right = 0x7fc63fc02830) Node: 'H' (ptr = 0x7fc63fc02830, left = 0x0, right = 0x7fc63fc02850) Node: 'I' (ptr = 0x7fc63fc02850, left = 0x0, right = 0x0) Added I: end F B G A C H D I E The queue is empty!，以使代码更简单：

count()

如何检查量角器中是否禁用了一组元素？

2 个答案: