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Created November 28, 2020 15:55
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JS Bin // source https://jsbin.com/xehumef
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS Bin</title>
</head>
<body>
<script id="jsbin-javascript">
function perfectSqrt(num) {
if(num ==1)return true
let left = 2;
let right = Math.floor(num/2);
while(left <= right){
let middle = Math.floor((left + right)/2)
let sqr = middle * middle;
if(sqr == num){
return true
}else{
if(sqr > num){
right = middle -1
}else{
left = middle + 1
}
}
}
return false
}
console.log(perfectSqrt(-1))
console.log(perfectSqrt(1))
console.log(perfectSqrt(2))
console.log(perfectSqrt(3))
console.log(perfectSqrt(4))
</script>
<script id="jsbin-source-javascript" type="text/javascript">function perfectSqrt(num) {
if(num ==1)return true
let left = 2;
let right = Math.floor(num/2);
while(left <= right){
let middle = Math.floor((left + right)/2)
let sqr = middle * middle;
if(sqr == num){
return true
}else{
if(sqr > num){
right = middle -1
}else{
left = middle + 1
}
}
}
return false
}
console.log(perfectSqrt(-1))
console.log(perfectSqrt(1))
console.log(perfectSqrt(2))
console.log(perfectSqrt(3))
console.log(perfectSqrt(4))</script></body>
</html>
Raw
jsbin.xehumef.js
function perfectSqrt(num) {
if(num ==1)return true
let left = 2;
let right = Math.floor(num/2);
while(left <= right){
let middle = Math.floor((left + right)/2)
let sqr = middle * middle;
if(sqr == num){
return true
}else{
if(sqr > num){
right = middle -1
}else{
left = middle + 1
}
}
}
return false
}
console.log(perfectSqrt(-1))
console.log(perfectSqrt(1))
console.log(perfectSqrt(2))
console.log(perfectSqrt(3))
console.log(perfectSqrt(4))
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