Javascript拆分并填充字符串

Question

我有一个字符串：

Pizza(food), Orange(fruit), Sandwich(food), lettuce(vegetable), Apple(fruit) 
,Burger(food)

我想将字符串填充为：

food: Pizza, Sandwich, Burger
fruit: Orange, Apple
Vegetable: lettuce

Answer 1

性交

var str = "Pizza(food), Orange(fruit), Sandwich(food), lettuce(vegetable), Apple(fruit) ,Burger(food)";
var obj = str.split(',').reduce(function(acc, token){
   token = token.trim().split(/\(|\)/).filter(Boolean);
   return (acc[token[1]]||(acc[token[1]] = [])).push(token[0]), acc;
}, {});

var newStr = Object.keys(obj).map(function(key){
   return key + ': ' + obj[key].join(', ');
}).join('\n');

Answer 2

更多Hardcore：

var s = "Pizza(food), Orange(fruit), Sandwich(food), lettuce(vegetable), Apple(fruit) ,Burger(food)";

var result = s.split(",");

console.log(result);
var s1 = "food : ";
var s2 = "fruit : ";
var s3 = "vegetable : ";
for (var i = 0; i < result.length; i++){

    var item = result[i].replace(/\(/,"-").replace(/\)/,"").split("-");

    switch(item[1]){
        case "food":
            s1 += item[0] + " ";
            break;
        case "fruit":
             s2 += item[0] + " ";
            break;
        case "vegetable":
             s3 += item[0] + " ";
            break;

    }  
}

console.log(s1+"\n"+s2+"\n"+s3);