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April 7, 2022 04:16 am GMT

80 % of freshers fail to answers these javascript snippets

Q1. Guess the output:

var truth = true;
let havingFunction = function()
{
if (truth)
{
var name = vineet
let lastName= mishra
}
console.log(name)
console.log(lastName)
}
havingFunction()

Take a break dont jump into output, think hard

Output:

vineet
ReferenceError: lastName is not defined

Reason: This happens due to the variable scope where name variable has function and lastName is having local scope

Q2. Guess the output:

console.log(3 > 2 > 1);
console.log(1 < 2 < 3);

take a break dont jump into output, think hard

Output:

false
true

Reason: In the first section of the snippet where 3>2>1 is false because when programs run it go for 3>2 which is true and then it goes for the other part which becomes true >1" where the value of true is 1 then equation becomes 1>1 which going to false, vice versa happens for another snippet which is 1<2< 3

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Original Link: https://dev.to/braincuber_technologies/80-of-freshers-fail-to-answers-these-javascript-snippets-4cam

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