javascript - 将 python 条件翻译为 javascript -- 控制流

Question

如何在 JavaScript 中执行此操作？当它命中 big_list

中的 words 时，应该打印“Found”

big_list = ['this', 'is', 'a', 'long', 'list', 'of' 'words']

needle = ['words', 'to', 'find']

for i in big_list:
    if i in needle:
        print('Found')
    else:
        print('Not Found')

我知道一般的 if/else 结构，但不确定语法:

if (big_list in needle) {
  console.log('print some stuff')
} else {
  console.log('print some other stuff')
}

Answer 1

您可以使用includes带有 for 循环的函数如下:

for (let i = 0; i < big_list.length; i++)
{
    if (needle.includes(big_list[i])) console.log("Found");
    else console.log("Not found");
}

或者使用forEach :

big_list.forEach(function(e) { 
     if (needle.includes(e)) console.log("Found");
     else console.log("Not found");
});