JS expression and computational simulation problems in the performance of
that frequency, calculated expression many times you anywhere at any time minor move will lower you can test .... JS only for use within your reach, the front end was not We recommend the use of expression
CSS expression (expression). You can not directly use this expression, because it may be because the cache without updating. Address this in the easiest way is to use the evalpackage to your statement.
Reproduced in: https: //www.cnblogs.com/positive/p/3885129.html