浅谈JS中String()与 .toString()的区别

<script>
  var str = false.toString();
  console.log(str, typeof str);
</script>

<blockquote style="margin-right: 0px;" dir="ltr"><pre class="html" name="code"><script>
  var str = null.toString();
  console.log(str, typeof str);
</script>

<script>
  var str = undefined.toString();
  console.log(str, typeof str);
</script>

<script>
  var str = String(null);
  console.log(str, typeof str);
</script>

<script>
  var str = String(undefined);
  console.log(str, typeof str);
</script>