JavaScript message box effect [implementation code]_javascript skills

Warning box

alert();

Confirmation box

var message=confirm("你喜欢javascript吗");
if(message==true){
  document.write("很好，加油");
}else{
  document.write("js功能强大，要学习哦");
}

Question Box

prompt("text","default value");

var myname=prompt(请输入你的姓名);
if(myname!=null){
  alert("你好"+myname);
}else{
  alert("你好我的朋友");
}

The above JavaScript message box effect [implementation code] is all the content shared by the editor. I hope it can give you a reference, and I hope you will support Script Home.