只是想知道，是否有一种方法可以向.includes方法添加多个条件，例如:
var value = str.includes("hello", "hi", "howdy");
想象一下逗号表示“或”。
它现在询问字符串是否包含hello, hi或howdy。所以只有当其中一个条件为真。
有什么方法可以做到吗?
当前回答
与数组数据/的精确匹配
const dataArray = ["amoos"， "rifat"， "hello"]; const findId = (data, id) => { 让res = data。Find (el => el == id) 返回res ?真:假; ｝ console.log(findId(dataArray， 'Hi')) // false console.log(findId(dataArray， 'amoos')) // true
其他回答
使用includes()，没有，但你可以通过test()实现REGEX:
var value = /hello|hi|howdy/.test(str);
或者，如果词语来自动态来源:
var words = ['hello', 'hi', 'howdy'];
var value = new RegExp(words.join('|')).test(str);
REGEX方法是一个更好的主意，因为它允许您将单词匹配为实际单词，而不是其他单词的子字符串。你只需要边界标记\b这个词，那么:
var str = 'hilly';
var value = str.includes('hi'); //true, even though the word 'hi' isn't found
var value = /\bhi\b/.test(str); //false - 'hi' appears but not as its own word
你可以这样做
["hello", "hi", "howdy"].includes(str)
另一个!
let result const givenStr = 'A, X' //values separated by comma or space. const allowed = ['A', 'B'] const given = givenStr.split(/[\s,]+/).filter(v => v) console.log('given (array):', given) // given contains none or only allowed values: result = given.reduce((acc, val) => { return acc && allowed.includes(val) }, true) console.log('given contains none or only allowed values:', result) // given contains at least one allowed value: result = given.reduce((acc, val) => { return acc || allowed.includes(val) }, false) console.log('given contains at least one allowed value:', result)
1线路方案:
字符串/ Array.prototype。包括('hello' || 'hi' || 'howdy');
let words = 'cucumber, mercy, introduction, shot, howdy'
words.includes('hi' || 'howdy' || 'hello') // true
words.includes('hi' || 'hello') // false
(错误答案，不要抄)
