javascript D3js如何在.enter上下文中附加2个相同级别的孩子
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/12230241/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
提示：将鼠标放在中文语句上可以显示对应的英文。显示中英文
时间：2020-10-26 15:39:55 来源:igfitidea点击:
D3js how to append 2 children at the same level in .enter context
提问by mikmikmik
I'm having an issue trying to put a circle and a text inside a group (same level, not inside each other) in the .enter() context
我在尝试将一个圆圈和一个文本放在 .enter() 上下文中的组内（同一级别，而不是彼此内）时遇到问题
var categorized = g1.selectAll("g.node").data(dataset, function(d){return d.id})
categorized
.enter()
.append("g")
.attr("id", function(d,i){return d.id;});
categorized
.enter().append("circle")
.style("fill", "#ddd");
// throws an error
categorized
.append('text')
.text(function(d,i){return d.count});
// this is working but is an update so I have to remove the text on exit
Is there a way to get back to the parent, sg like this:
有没有办法回到父级，像这样：
categorized
.enter()
.append("g")
.append("circle")
.getBackToParent // the g
.append("text");
回答by Felix Kling
Just assign the parent d3 wrapper to a variable:
只需将父 d3 包装器分配给一个变量：
var g = categorized.enter().append("g");
g.append("circle").style("fill", "#ddd");
g.append("text").text(function(d,i){return d.count});
