d3 v5 api select

https://github.com/d3/d3/blob/master/API.md#selections-d3-selection

Selecting Elements(选择元素）	描述	英文
d3.selection	选择根节点	select the root document element.
d3.select	选择一个节点	select an element from the document.
d3.selectAll	选择多个节点	select multiple elements from the document.
selection.select	从已选择节点继续选择	select a descendant element for each selected element.
selection.selectAll	从已选择节点继续选择	select multiple descendants for each selected element.
selection.filter	通过数据过滤节点	filter elements based on data.
selection.merge	合并选择	merge this selection with another.
d3.matcher	查看是否满足标签	test whether an element matches a selector.
d3.selector	创建一个选择对象（参数），一般直接传入标签名，不需要此步	select an element.
d3.selectorAll	创建多个选择对象（参数）	select elements.
d3.window	get a node’s owner window.	get a node’s owner window.
d3.style	get a node’s current style value.	get a node’s current style value.

Modifying Elements（更新元素）
selection.attr	获得或设置一个属性(attribute)	get or set an attribute.
selection.classed	获得，添加或去除’class’属性	get, add or remove CSS classes.
selection.style	获得或设置一个样式	get or set a style property.
selection.property	获得或设置一个属性(property)	get or set a (raw) property.
selection.text	获得或设置标签内容	get or set the text content.
selection.html	获得或设置标签内html	get or set the inner HTML.
selection.append	创建，追加或选择新的元素	create, append and select new elements.
selection.insert	创建，插入或选择新的元素	create, insert and select new elements.
selection.remove	移除元素	remove elements from the document.
selection.clone	插入克隆元素	insert clones of selected elements.
selection.sort	排序	sort elements in the document based on data.
selection.order	根据选择重新排序	reorders elements in the document to match the selection.
selection.raise	reorders each element as the last child of its parent.	reorders each element as the last child of its parent.
selection.lower	create and select a detached element.	reorders each element as the first child of its parent.
d3.create	create and select a detached element.	create and select a detached element.
d3.creator	create an element by name.	create an element by name.

Joining Data（插入数据）
selection.data	join elements to data.	join elements to data.
selection.enter	获得enter选择结果	get the enter selection (data missing elements).
selection.exit	获得exit选择结果	get the exit selection (elements missing data).
selection.datum	获得或设置标签数据	get or set element data (without joining).
Handling Events（处理事件）
selection.on	添加或移除时间监听	add or remove event listeners.
selection.dispatch	dispatch a custom event.	dispatch a custom event.
d3.event	the current user event, during interaction.	the current user event, during interaction.
d3.customEvent	temporarily define a custom event.	temporarily define a custom event.
d3.mouse	通过给出的容器获得鼠标的位置	get the mouse position relative to a given container.
d3.touch	通过给出的容器获得点击的位置	get a touch position relative to a given container.
d3.touches	通过给出的容器获得点击的位置	get the touch positions relative to a given container.
d3.clientPoint	get a position relative to a given container.	get a position relative to a given container.

Control Flow（控制流）
selection.each	对每一个元素作用一个函数	call a function for each element.
selection.call	作用一个函数	call a function with this selection.
selection.empty	如果为空返回true	returns true if this selection is empty.
selection.nodes	返回选择的所有节点	returns an array of all selected elements.
selection.node	返回选择的第一个节点	returns the first (non
selection.size	返回选择的元素个数	returns the count of elements.

Local Variables（本地变量）
d3.local	declares a new local variable.	declares a new local variable.
local.set	set a local variable’s value.	set a local variable’s value.
local.get	get a local variable’s value.	get a local variable’s value.
local.remove	delete a local variable.	delete a local variable.
local.toString	get the property identifier of a local variable.	get the property identifier of a local variable.
Namespaces（命名空间）
d3.namespace	qualify a prefixed XML name, such as “xlink:href”.	qualify a prefixed XML name, such as “xlink:href”.
d3.namespaces	the built	the built