for example, the page dynamically generates 100 li, and each li has a .name element
<li><div class="name"></div><li> jq is obtained by $(".name"), and then $(".name"). Length can get the length;
how does vue get all the .names and get the length?
document.querySelectorAll (".name")
add ref attribute to dynamic generation, use this.$refs.ref name to get
or directly introduce jQuery, and use the original method to get it.
since vue is used to manipulate data, you can bind a data to the dom of the same class to manipulate this data
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