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JS solution for obtaining the width and height of hidden elements whose display is none

2022-07-02 22:38:00 【If you want to drink pipa, hurry up】

https://www.bbsmax.com/A/A7zgKYwoz4/

                    nextUlElement.style.cssText = 'display:block;position:absolute;z-index:-1000';
                    let height = nextUlElement.scrollHeight.toString() + "px";
                    nextUlElement.style.cssText = `display:block;height:0;overflow: hidden;`;