Javascript Challenges - Prime Number

Javascript Challenges - Prime Number
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[anonymous_]

Sir I just want to say thank you to you, you know that your views on videos are not that much but you are still making video for guys like us who want to grind every day . Big thank you . Plz never stop making these awesome video

[GeorgeOtieno]

for the second optimized approach using Sqrt, I think on top there where should also include the code below so that 2 is treated as a prime number

if (num === 2) {
return true;
}

[LinhPham-ddvb]

Hi John Smilga, i 'm from Viet Nam, i 'm beginer, i just wanna say tks a lots for all you did !

[abdelkarimabouzi]

const isPrime = (num) => {
let result = 0;
let count = 1;
if (num === 1) {
return false
} else if (num > 1) {
while (count < num) {
if (num % count === 0) {
result++;
};
count++
}
;
};
return result === 1;
};

[pink_fly]

I just cannot mention in words how thankful I am to you 🙏🙏

[virtualSoumya]

function checkPrimeNumber(num){

if( num <2){
return false
}

let root = Math.ceil(Math.sqrt(num))
for(let i = 2 ; i <= root ; i ++){
if( num == 2 || num ==3){
return true
}
if ( num % i === 0 ){
return false
}
}
return true
}
console.log(`Is 1 prime? ${checkPrimeNumber(1)}`)
console.log(`Is 2 prime? ${checkPrimeNumber(2)}`)
console.log(`Is 3 prime? ${checkPrimeNumber(3)}`)

[eppakayalashirisha]

We can loog from 2 to 9, like for(i=2;i<10;i++)

[nocodnb]

Thank you for this video very helpful and the square root idea is very smart

[eternal_stoic_]

the simplest and best explanation ever

[nivethakrishnan]

Can you please tell us what is extension you have used in Vs code? which displays console.log statements side by side. Thanks in advance

[abul]

How do I get vscode to show the result while im typing in the code? Like its happening at @3:37

[rezaarian]

function showPrime(limit){
for (let num = 2 ; num <= limit ; num++){
let isPrime = true ;
for (let factor = 2; factor < num ; factor++){
if (num % factor === 0)
isPrime = false ;
break;
}
if (isPrime) console.log(num)
}
};

[Marius]

What kind of extention gives these green squares and evaluetes values ?

[rreddzen]

Can I ask what extension is showing the results inline with the codes?