Question

我需要检查字符串是否具有一些值的indexOf。我想避免这样的事情：

objectId.getIdSnapshot().values()

我试图创建一个像let filter = tasks.filter( x => x.eventData.workflow_name === brand && (x.eventData.task_queue_name.indexOf('Value1') == -1 && x.eventData.task_queue_name.indexOf('_Value2') == -1 && x.eventData.task_queue_name.indexOf('Value3') == -1 && x.eventData.task_queue_name.indexOf('BANG_Value4') == -1) )这样的数组，并在一行中编写indexOf条件。

是否可以避免一堆const VALUES_TO_SKIP = ['Value1', ...]？

Answer 1

您可以像这样使用Array.some或Array.every：

// The values to Test out
const arrayOfValue = [
  'Value1',
  '_Value2',
  'Value3',
  'BANG_Value4',
];

// Your data to filters
const tasks = [{
  eventData: {
    workflow_name: 'brand',
    task_queue_name: 'BANG_Value3 and Value2 and Value3',
  },
}, {
  eventData: {
    workflow_name: 'brand',
    task_queue_name: 'Dogs loves cat',
  },
}, {
  eventData: {
    workflow_name: 'brand',
    task_queue_name: 'Dogs loves BANG_Value4',
  },
}];

const brand = 'brand';

const filtered = tasks.filter(x =>
  x.eventData.workflow_name === brand &&
  !arrayOfValue.some(y => x.eventData.task_queue_name.includes(y))
);

console.log(filtered);

Answer 2

我试图创建一个像const VALUES_TO_SKIP = ['Value1', ...]这样的数组，并在一行中写出indexOf条件。

我将使用带有替换和test的正则表达式：

let filter = tasks.filter(x =>
    x.eventData.workflow_name === brand && !/Value1|_Value2|Value3|BANG_Value4/.test(x.eventData.task_queue_name)
);

实时示例：

const tasks = [
    {
        eventData: {
            workflow_name: 'foo',
            task_queue_name: 'xxx BANG_Value4 yyy',
        }
    },
    {
        eventData: {
            workflow_name: 'foo',
            task_queue_name: 'none of them',
        }
    },
    {
        eventData: {
            workflow_name: 'bar',
            task_queue_name: 'Dogs loves BANG_Value4',
        }
    },
    {
        eventData: {
            workflow_name: 'foo',
            task_queue_name: 'none of them again',
        }
    },
    {
        eventData: {
            workflow_name: 'foo',
            task_queue_name: '_Value2 yyy',
        }
    }
];

const brand = "foo";

let filter = tasks.filter(x =>
    x.eventData.workflow_name === brand && !/Value1|_Value2|Value3|BANG_Value4/.test(x.eventData.task_queue_name)
);

console.log(filter);

.as-console-wrapper {
    max-height: 100% !important;
}

Answer 3

您可以只使用every检查多个键，而使用includes来支持indexOf：

 ['Value1', '_Value2', 'Value3'].every(key =>
   !x.eventData.task_queue_name.includes(key))

避免在过滤器循环中使用multi indexOf

3 个答案: