JavaScript .includes() 方法的多个条件 [英] multiple conditions for JavaScript .includes() method

问题描述

只是想知道，有没有办法向 .includes 方法添加多个条件，例如:

Just wondering, is there a way to add multiple conditions to a .includes method, for example:

    var value = str.includes("hello", "hi", "howdy");

想象一下逗号表示或".

Imagine the comma states "or".

它现在询问字符串是否包含 hello, hi 或 howdy.所以只有当一个，并且只有一个条件为真.

It's asking now if the string contains hello, hi or howdy. So only if one, and only one of the conditions is true.

有没有办法做到这一点?

Is there a method of doing that?

推荐答案

即使有一个也应该可行，并且只有一个条件为真:

That should work even if one, and only one of the conditions is true :

var str = "bonjour le monde vive le javascript";
var arr = ['bonjour','europe', 'c++'];

function contains(target, pattern){
    var value = 0;
    pattern.forEach(function(word){
      value = value + target.includes(word);
    });
    return (value === 1)
}

console.log(contains(str, arr));

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