javascript - 转换为键值对

Question

我的问题

1. 如何在JS中读取rom txt文件

2. 处理数据的最佳方法。像下面这样的东西或者？？？

   var data = [
   {
     name: "Orange",
     type: "Fruit",
     desc: "some description about the recipe"
   },
     {
     name: "Spinach",
     type: "Veg",
     desc: "some description about the recipe"
   },
     {
     name: "Beans",
     type: "Veg",
     desc: "some description about the recipe"
   },
   

   ]

我想要一个对象数组，以便我可以进一步处理它以打印出水果的唯一名称，只是蔬菜和水果。

Answer 1

您可以使用 AJAX 和正则表达式来完成此操作。

如果您使用的是 jQuery:

$.ajax({
    url: 'someTextFile.txt',
    success: function(data) {
        var regEx = /([a-zA-Z]+), ([a-zA-Z]+).*[\r\n  \t]*([a-zA-Z0-9 \.]+)/g,
            recipe, allRecipies = [];
        while (recipe = rege.exec(data)) {
            allRecipies.push({
                name: recipe[1],
                type: recipe[2],
                desc: recipe[3],
            });
        }
        console.log(allRecipies);
    }
});

如果您不使用 jQuery

var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
    if (this.readyState == 4 && this.status == 200) {
       data = xhttp.responseText;
        var regEx = /([a-zA-Z]+), ([a-zA-Z]+).*[\r\n  \t]*([a-zA-Z0-9 \.]+)/g,
            recipe, allRecipies = [];
        while (recipe = rege.exec(data)) {
            allRecipies.push({
                name: recipe[1],
                type: recipe[2],
                desc: recipe[3],
            });
        }
        console.log(allRecipies);
    }
};
xhttp.open("GET", "filename", true);
xhttp.send();