Bagaimana untuk membaca eksternal lokal JSON file di JavaScript?

data = '[{"name" : "Ashwin", "age" : "20"},{"name" : "Abhinandan", "age" : "20"}]';

function readTextFile(file, callback) {
    var rawFile = new XMLHttpRequest();
    rawFile.overrideMimeType("application/json");
    rawFile.open("GET", file, true);
    rawFile.onreadystatechange = function() {
        if (rawFile.readyState === 4 && rawFile.status == "200") {
            callback(rawFile.responseText);
        }
    }
    rawFile.send(null);
}

//usage:
readTextFile("/Users/Documents/workspace/test.json", function(text){
    var data = JSON.parse(text);
    console.log(data);
});

[{"name":"ay","id":"533"},
{"name":"kiy","id":"33"},
{"name":"iy","id":"33"},
{"name":"iy","id":"3"},
{"name":"kiy","id":"35"},
{"name":"kiy","id":"34"}]

var fs=require('fs');
var data=fs.readFileSync('words.json', 'utf8');
var words=JSON.parse(data);
var bodyparser=require('body-parser');
console.log(words);
var express=require('express');

var app=express();

var server=app.listen(3030,listening);

function listening(){
console.log("listening..");
}
app.use(express.static('website'));
app.use(bodyparser.urlencoded({extended:false}));
app.use(bodyparser.json());

 app.get('/get/:id',function(req,res){

var i;

 for(i=0;i<words.length;++i)
 {
 if(words[i].id==req.params.id){
 res.send(words[i]);
 }
}
console.log("success");

});

 app.get('/get/:name',function(req,res){

var i;

 for(i=0;i<words.length;++i)
 {
 if(words[i].id==req.params.name){
 res.send(words[i]);
 }
}
console.log("success");

});

app.get('/get/name/:name',function(req,res){
word = words.filter(function(val){
  return val.name === req.params.name;
});
res.send(word);

 console.log("success");

});

app.get('/all',sendAll);

 function sendAll(request,response){
 response.send(words);

 }

let json = require('/Users/Documents/workspace/test.json');

fetch("test.json")
  .then(response => response.json())
  .then(json => console.log(json));

var jsonData = JSON.parse(theTextContentOfMyFile);

MyData = { resource:"A",literals:["B","C","D"]}

<script type="text/javascript" src="my_json.js"></script>

<script type="text/javascript">
var obj = JSON.parse(contacts);

contacts='[{"name":"bla bla", "email":bla bla, "address":"bla bla"}]';

[
    {"key": "value"},
    {"key2": "value2"},
    ...
    {"keyn": "valuen"},
]

<input type="file" id="get_the_file">

document.getElementById("get_the_file").addEventListener("change", function() {
  var file_to_read = document.getElementById("get_the_file").files[0];
  var fileread = new FileReader();
  fileread.onload = function(e) {
    var content = e.target.result;
    // console.log(content);
    var intern = JSON.parse(content); // Array of Objects.
    console.log(intern); // You can index every object
  };
  fileread.readAsText(file_to_read);
});

    {
        {
            "key": "INFO",
            "value": "This is an example."
        }
    }

    var url = "file.json";         
    $.getJSON(url, function (data) {
        $.each(data, function (key, model) {
            if (model.key == "INFO") {
                console.log(model.value)
            }
        })
    });

    var xmlhttp = new XMLHttpRequest();
    xmlhttp.onreadystatechange = function() {
    if (this.readyState == 4 && this.status == 200) {
        var myObj = JSON.parse(this.responseText);
        //console.log("Json parsed data is: " + JSON.stringify(myObj));
       }
    };
xmlhttp.open("GET", "your_file_name.json", true);
xmlhttp.send();

MyController.$inject = ['myService'];
function MyController(myService){

var promise = myService.getJsonFileContents();

  promise.then(function (response) {
    var results = response.data;
    console.log("The JSON response is: " + JSON.stringify(results));
})
  .catch(function (error) {
    console.log("Something went wrong.");
  });
}

myService.$inject = ['$http'];
function myService($http){

var service = this;

  service.getJsonFileContents = function () {
    var response = $http({
      method: "GET",
      url: ("your_file_name.json")
    });

    return response;
  };
}

 function loadJSON(callback) {   

    var xobj = new XMLHttpRequest();
        xobj.overrideMimeType("application/json");
    xobj.open('GET', 'my_data.json', true); // Replace 'my_data' with the path to your file
    xobj.onreadystatechange = function () {
          if (xobj.readyState == 4 && xobj.status == "200") {
            // Required use of an anonymous callback as .open will NOT return a value but simply returns undefined in asynchronous mode
            callback(xobj.responseText);
          }
    };
    xobj.send(null);  
 }

 loadJSON(function(response) {
    // Parse JSON string into object
    var actual_JSON = JSON.parse(response);
 });

python -m SimpleHTTPServer 8181

function readTextFile(file, callback) {
    var rawFile = new XMLHttpRequest();
    rawFile.overrideMimeType("application/json");
    rawFile.open("GET", file, true);
    rawFile.onreadystatechange = function() {
        if (rawFile.readyState === 4 && rawFile.status == "200") {
            callback(rawFile.responseText);
        }
    }
    rawFile.send(null);
}

//usage:
// readTextFile("DATA.json", function(text){
//     var data = JSON.parse(text);
//     console.log(data); 
// });

var task1 = function (){
  return new Promise (function(resolve, reject){
    readTextFile("DATA.json", function(text){
    var data = JSON.parse(text);
    console.log('task1 called');
    console.log(data);
    resolve('task1 came back');
    }); 
  });
};

var task2 = function (){
  return new Promise (function(resolve, reject){
    readTextFile("DATA2.json", function(text){
    var data2 = JSON.parse(text);
    console.log('task2 called');
    console.log(data2);
    resolve('task2 came back');
    });
  });
}

Promise.race([task1(), task2()])
       .then(function(fromResolve){
          console.log(fromResolve); 
       });

import data from "/Users/Documents/workspace/test.json"

<script src="//d3js.org/d3.v3.min.js" charset="utf-8"></script>

<script>
  d3.json("data.json", function(error, data) {
    if (error)
      throw error;
    console.log(data);
  });
</script>

// wrapped XMLHttpRequest in a promise
const readFileP = (file, options = {method:'get'}) => 
  new Promise((resolve, reject) => {
    let request = new XMLHttpRequest();
    request.onload = resolve;
    request.onerror = reject;
    request.overrideMimeType("application/json");
    request.open(options.method, file, true);
    request.onreadystatechange = () => {
        if (request.readyState === 4 && request.status === "200") {
            resolve(request.responseText);
        }
    };
    request.send(null);
});

readFileP('<path to File>')
    .then(d => {
      '<do something with the response data in d.srcElement.response>'
    });