Simplified code for javascript if_javascript tips

[Ctrl A Select All Note: If you need to introduce external Js, you need to refresh to execute

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[Ctrl A Select all Note:

If you need to introduce external Js, you need to refresh to execute
]

You can also write like this

[Ctrl A select all Note:
If you need to introduce external Js, you need to refresh to execute
]<script> a=0 if(a<1)alert(a),alert(1-a) //VS if(a==0){alert(a);alert(1-a)} </script><script> a=0 a?0:(alert(a),alert(1-a)) </script><script> a=0 a==0 && (alert(a),alert(1-a)) </script>