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What will be the output of following code?
a='null';
if(a==null){console.log(1);}
if(a!=null){console.log(2);}
if(a!==null){console.log(3);}
if(a===null){console.log(4);}
1 4
2 3
1 2
2
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Qtr No. 213, New Town Yehlanka Indore 454775
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