Pistol

``` function numberReverse(num) { const str = num.toString() return str.length === 1 ? str : numberReverse(str.substring(1)) + str.substring(0, 1) } ``` 这样行不,有错望指出

@jjeejj 看到过一个说法,forEach能让代码更为简便和可读性更高,在性能不是特别影响的前提下,代码的可拓展性,可读性等会更为重要,而且随着浏览器引擎的升级,应该forEach的性能会被优化的越来越棒的

@hackerwins check it please

@bdbch Any questions?

@arnaugomez hello! Could you please look up PR?

> Approved for now - however could you make sure this isn't breaking anything else since this is a change right on `insertContentAt` which is used a lot in the...