Tag: queue.js

d3.js queue.js和node.js

我想在nodejs中加载数据，然后传递给expressjs在浏览器中渲染d3图表。 我知道我可以从这里加载数据 – https://github.com/mbostock/queue 我有一个expressjs路由configuration像这样 – var d3 = require('d3') ,queue = require("queue-async") ; router.get('/', handler1); function handler1(req, res) { queue() .defer(d3.json, 'https://data.medicare.gov/resource/a8s4-5eya.json?$limit=50000&$$app_token=igGS35vW9GvDMmJUnmHju2MEH&$select=org_pac_id%20as%20source, org_pac_id%20as%20target,org_lgl_nm%20as%20description') .defer(d3.json, 'https://data.medicare.gov/resource/a8s4-5eya.json?$limit=50000&$$app_token=igGS35vW9GvDMmJUnmHju2MEH&$select=org_pac_id%20as%20source, org_pac_id||pri_spec%20as%20target, pri_spec%20as%20description') .defer(d3.json, 'https://data.medicare.gov/resource/a8s4-5eya.json?$limit=50000&$$app_token=igGS35vW9GvDMmJUnmHju2MEH&$select=org_pac_id||pri_spec%20as%20tsource, pri_spec%20as%20target, frst_nm%20as%20description') .await(go); function go(error, data,d2,d3){ data.concat(d2); data.concat(d3); console.log(data); res.render('index', { title: 'Group Practices', data }); } } module.exports = router; 但是，我得到一个浏览器错误， XMLHttpRequest is not […]