javascript 在 d3 中设置 ID 问题
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Setting an id issue in d3
提问by user1782677
So this is what I'm doing:
所以这就是我正在做的：
selection = canvas.selectAll("circle").data(mydata)
selection.enter().append("circle")
selection
.attr("id", function(d, i){ var result = i+''; return result; })
In short, I'm trying to set the id of each element to be a string representation of its index.
简而言之，我试图将每个元素的 id 设置为其索引的字符串表示形式。
However, when I try to access that particular element later by using d3.select("#1")or by using a number variable i and going d3.select("#" + i.toString()), nothing seems to work.
但是，当我稍后尝试通过使用d3.select("#1")或使用数字变量 i 和 going访问该特定元素时d3.select("#" + i.toString())，似乎没有任何效果。
What am I doing wrong?
我究竟做错了什么？
回答by user1782677
I figured it out, apparently ids can't start with a number.
我想通了，显然 ids 不能以数字开头。
