javascript - 处理多个 .search() 参数的结果

Question

如 How do you search multiple strings with the .search() Method? 中所述，您可以在 .search() 中使用多个参数。

但是我如何知道 .search() 中给出的哪个参数返回正值？

例如:

var search = string.search("hello|world|not");

if (search.positiveArgument == 1) {
    //"hello" was found
} else if (search.positiveArgument == 2) {
    //"world" was found
etc...

我知道 .positiveArgument 无效，它纯粹用于示例目的。

Answer 1

使用.match() 用正则表达式代替。匹配的部分将被返回。

例如:"yo world".match(/hello|world|not/); 返回["world"]

var search = str.match(/hello|world|not/);

if (search && search.length === 1) {
    if(search[0] == "hello") {
        // hello was found
    }
    else if(search[0] == "world") {
        // world was found
    }
    else {
        // not was found
    }
}