如何將數據從.txt文件保存到JavaScript中的數組中？

我有這個文件，「File.txt」格式化爲一個大的array[ ]，在這個數組的每個索引放置在.txt文件中有一個json我想以後使用。我需要讀取文件，保存每個json並將其推入陣列使用javascript。每個{ content }，{ content 2}代表json。如何將數據從.txt文件保存到JavaScript中的數組中？

FILE.TXT

[ 
{ 
    "nodes": [ 
    {"id": "Source","label":"name","group": 0}, 
    {"id": "Parent_1","label":"name","group": 1}, 
    {"id": "Parent_2","label":"name","group": 1}, 
    {"id": "Parent_3","label":"name","group": 1}, 
    {"id": "Child_1","label":"name","group": 2}, 
    {"id": "Child_2","label":"name","group": 2}, 
    {"id": "Child_3","label":"name","group": 2}, 
    {"id": "Child_4","label":"name", "group": 3} 
    ], 
    "links": [ 
    { "source": "Source","target": "Parent_1"}, 
    { "source": "Source","target": "Parent_2"}, 
    { "source": "Source","target": "Parent_3"}, 
    { "source": "Source","target": "Child_1"}, 
    { "source": "Source","target": "Child_2"}, 
    { "source": "Source","target": "Child_3"}, 
    { "source": "Child_2","target": "Child_4"} 
    ] 
} , 
{ 
    "nodes": [ 
    {"id": "Source","label":"name","group": 0}, 
    {"id": "Parent_1","label":"name","group": 1}, 
    {"id": "Parent_2","label":"name","group": 1}, 
    {"id": "Parent_3","label":"name","group": 1}, 
    {"id": "Child_1","label":"name","group": 2}, 
    {"id": "Child_2","label":"name","group": 2}, 
    {"id": "Child_3","label":"name","group": 2}, 
    {"id": "Child_4","label":"name", "group": 3} 
    ], 
    "links": [ 
    { "source": "Source","target": "Parent_1"}, 
    { "source": "Source","target": "Parent_2"}, 
    { "source": "Source","target": "Parent_3"}, 
    { "source": "Source","target": "Child_1"}, 
    { "source": "Source","target": "Child_2"}, 
    { "source": "Source","target": "Child_3"}, 
    { "source": "Child_2","target": "Child_4"} 
    ] 
} 
]

我想到的是這樣的：

//The array i want to save all the data in 
NewArray=[]; 

//Get the file name 
var File = document.getElementById('File.txt'); 

//Make a loop so i can read each index of the file and save the content in the new array 
for (i = 0; i < array.length; i++) { 
    NewArray[i] = "File.[i] ; 
}

來源

2017-08-24 Cristi.Fatu

JavaScript只能讀取本地文件。我猜你的文本文件在服務器上？ – hallleron

@hallleron它是本地的。 –

然後編輯你的文件，用'var data ='作爲它的內容前綴，然後通過'

做這樣的

$(document).ready(function() { 
    $("#lesen").click(function() { 
     $.ajax({ 
      url : "helloworld.txt", //get the file from local/server 
      dataType: "text", 
      success : function (data) { 
       var arrData = data; //data are in the form of array with json data 
      } 
     }); 
    }); 
});

來源

2017-08-24 11:37:13

我把你的答案在標籤，它應該工作，但它給了我這個錯誤：Uncaught ReferenceError：$未定義; –

這意味着你需要加載jquery。 –

你需要添加jQuery腳本 –

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