迭代雖然JSON數組中p5.js

Question

我有一個返回服務器：

我想通過在p5.js

var ms = [] 

function preload() { 
    var url ='https://dest/url' 
    ms = loadJSON(url) 
} 

這個數據，我將返回一個數組，但迭代它似乎沒有回報任何明智的東西。

但是，如果我相同的數據粘貼到的JavaScript控制檯我得到不同的數據：

怎麼做，我不是遍歷這個數據（而不是加載作爲數組）或將其轉換爲數組？

Answer 1

我想你的意思是這樣的：

var array; 
for (var key in ms) { 
    if (!array) { 
     array = [a[key]]; 
    } else { 
     array.push(a[key]); 
    } 
} 
console.log(array); // [ {'time': .... }, {...}, .. ] 

Answer 2

你越來越對象的數組，這裏是你如何可以簡單地重複他們

var data = [{"time":"12345","rate":"12345.12"}, {"time":"12345","rate":"12345.12"}, {"time":"12345","rate":"12345.12"}, {"time":"12345","rate":"12345.12"}, {"time":"12345","rate":"12345.12"} ]; 
 

 
for(obj of data){ 
 
    console.log("time and rate: ", obj.time, obj.rate) 
 
}

Answer 3

正如其他人所指出的在評論中，你所擁有的本質上是一個數組或類似數組的對象，可以更加精確地將它們轉換爲ap羅珀陣列像這樣：

ms.length = Object.keys(ms).length; 
var msArray = Array.prototype.slice.call(ms); 

Answer 4

jettpleyn有實際工作在P5的唯一答案。

最終雖則 - 我想通了，我可以讓我的生活更容易通過改變JSON從服務器返回一個對象包含數組，而不是一個陣列直接

{ "data": 
 
[{"time":"85579.54189181328","rate":177.66287},{"time":"81978.61475682259","rate":177.66287},{"time":"78377.54175782204","rate":177.66287},{"time":"74776.58741879463","rate":177.66287},{"time":"71175.57481980324","rate":177.66287},{"time":"67574.59330582619","rate":177.66287},{"time":"63973.427922964096","rate":177.66287},{"time":"60372.39295697212","rate":177.66287},{"time":"56771.37366294861","rate":177.66287},{"time":"53170.276379823685","rate":177.66287},{"time":"49569.180530786514","rate":177.66287},{"time":"45968.02240085602","rate":177.66287},{"time":"42365.825628995895","rate":177.66287},{"time":"38764.64792180061","rate":177.71416},{"time":"35163.241872787476","rate":177.71416},{"time":"31562.00651884079","rate":177.72556},{"time":"27960.898827791214","rate":177.73126},{"time":"24359.687824964523","rate":177.67998},{"time":"20758.03328180313","rate":177.67998},{"time":"17156.808887004852","rate":174.53839},{"time":"13555.605601787567","rate":174.9276},{"time":"9954.546007871628","rate":175.35431},{"time":"6353.40945982933","rate":175.96582},{"time":"2752.3464789390564","rate":175.84541}] 
 
}