javascript - 如何遍历数组并检查数组值

Question

所以我有一个数组，我想遍历该数组并检查其中的值是否与某些字符串匹配，如果匹配则执行一些操作。

这是我目前所拥有的:

var rgt_count = a_related_genres_leon.length; // <- 3 items

for (var i = 0; i < rgt_count; i++) {

    if inArray("Music", a_related_genres_leon) {
        console.log('Music');
    } else if inArray("TV", a_related_genres_leon) {
        console.log('TV');
    } else if inArray("Comedy", a_related_genres_leon) {
        console.log('Comedy');
    }
}

我收到一个 Uncaught SyntaxError: Unexpected token ( error right now.

这个我也试过

if text($.inArray("Music", a_related_genres_leon)) {
        console.log('Music');
    } else if text($.inArray("TV", a_related_genres_leon)) {
        console.log('TV');
    } else if text($.inArray("Comedy", a_related_genres_leon)) {
        console.log('Comedy');
    }

Answer 1

要么在数组中搜索特定元素:

if ($.inArray("Music", a_related_genres_leon) > -1) {
    console.log('Music');
}
if ($.inArray("TV", a_related_genres_leon) > -1) {
    console.log('TV');
}
if ($.inArray("Comedy", a_related_genres_leon) > -1) {
    console.log('Comedy');
}

或者遍历数组中的所有元素

var rgt_count = a_related_genres_leon.length; // <- 3 items
for (var i = 0; i < rgt_count; i++) {
    console.log(a_related_genres_leon[i]);
}

但不要两者兼而有之。