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Why is the script tag a red task?

<script>
  console.log("script1:start");
  setTimeout(()=>{
    console.log("settimeout");
  },1000)
  new Promise((resolve)=>{
    console.log("script1:promise1");
    resolve()
  }).then(()=>{
    console.log("script1:then1");
  })
  console.log("script1:end");
</script>
<script>
  console.log("script2:start");
  new Promise((resolve)=>{
    console.log("script2:promise2");
    resolve()
  }).then(()=>{
    console.log("script2:then2");
  })
  console.log("script2:end");
</script>
After performing the micro task in the first script tag, why not the macro task distributed by settimeout, but the macro task of the next script tag?

about 4 years ago · Juan Pablo Isaza
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