如何获取具有特定类和 id 的元素的值？

Question

i want to get transform attribute of particular id and class using java script not jquery? is there any solution to select a specific element, specifying both the class and id ? for example:

 <g id="748588" transform="translate(44 -4)" class="Selection"></g>

And I want to get transform attribute corresponding with match id and class

Answer 1

You can use document.querySelector()

const selector = document.querySelector("#748588.Selection")
const transformValue = selector.getAttribute("transform")

Answer 2

Yes, document.querySelector will do what you want. Here is the MDN page. In your case, you could use something like:

const my_transform = document.querySelector('#748588.Selection').getAttribute('transform')

Answer 3

使用getElementById获取元素，然后可以从元素style对象中获取transform属性：

document.getElementById("748588").style.transform