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我想讀一個JSON文件,它看起來像內部設置D3圖表從(下面的代碼)匿名函數
但是,似乎變量g
沒有得到設置時,我迭代它。如果我在匿名函數之外進行操作,它就會起作用。 我錯過了什麼?
<script id="js">
// Create a new directed graph
var g = new dagreD3.graphlib.Graph().setGraph({});
d3.json("expectedOutput.json", function(data) {
data.forEach(function (job) {
console.log(job); // I do see job values correctly.
g.setNode(job.child, { label: job.child });
g.setEdge(job.parent, job.child, { label: job.path });
});
});
console.log(g); // g doesn't have the nodes & edges values set above
// if I do this
g.setNode(job.child, { label: job.child });
g.setEdge(job.parent, job.child, { label: job.path });
console.log(g); // I see g is set properly
</script>