node.js – 如何映射数据,以便我可以用它来生成饼图？

我想知道如何映射2个数组的数据,以便我可以使用数据来生成使用d3.js的图表

目前我有2个阵列：

wordsArray = {"THE","MAIN","PURPOSE","OF","PHOTOSYNTHESIS","IS","TO","MAKE",
             "FOOD","FOR","PLANT","IT","PRODUCE","SUGAR","MANUFACTURE"};
computationArray = {6,1,2,2,1,3,3,1,3,4,4,2,1,2,1};

wordsArray包含所有不同的单词,calculateArray包含每个单词出现的次数.

我想知道是否有任何快捷方式使它看起来像这样：

var data = [{"words":"THE", "count": "6"}, 
{"words":"MAIN", "count": "1"}, {"words":"PURPOSE", "count": "2"}, 
{"words":"OF", "count": "2"}.... ];

谢谢！

您正在寻找的是d3中的 zip功能：

d3.zip(wordsArray, computationArray).map(function(e) {
    return { words: e[0], count: e[1] };
});