如何检查传递给 JavaScript 中 function 的参数类型？

Question

I want to make sure that a parameter that is passed to a function is an element and not a number or a string so my program does not crash?

function myFunction(element){ 
  console.log(element.style.color)
}

Answer 1

Perhaps you're looking for HTMLElement :

function myFunction(element) {
  if (element instanceof HTMLElement) {
    console.log(element.style.color)
  }
}