打字稿，'NodeListOf<Element>'不是数组类型或字符串类型

问题描述

Converting my JS to TS strict mode.

The following syntax looks fine to me but TS is complaining in the for loop on allSubMenus with:

[ts] Type 'NodeListOf<Element>' is not an array type or a string type.

What am I missing?

function subAct(target:Node){

  const allSubMenus : NodeListOf<Element> = document.querySelectorAll('.subMenuItems') 

  for (const sub of allSubMenus){
    sub.classList.remove('active')
  }  
}

You need to set the target compiler option to es6 or higher for NodeListOf<T> to be iterable.

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