Answers for "how to check if is integer javascript"

18

javascript is number an integer

Number.isInteger(value)

//returns a Boolean
Posted by: Guest on January-18-2020
-2

javascript check if number

// The first 2 Variations return a Boolean
// They just work the opposite way around

// IsInteger
if (Number.isInteger(val)) {
	// It is indeed a number
}

// isNaN (is not a number)
if (isNaN(val)) {
	// It is not a number
}

// Another option is typeof which return a string
if (typeof(val) === 'number') {
	// Guess what, it's a bloody number!
}
Posted by: Guest on March-15-2020
0

js check if string is integer

function isInt(str) {
  return !isNaN(str) && Number.isInteger(parseFloat(str));
}
Posted by: Guest on June-04-2020
1

javascript check if a value is a integer number

Number.isInteger(123) //true
Number.isInteger(-123) //true
Number.isInteger(5-2) //true
Number.isInteger(0) //true
Number.isInteger(0.5) //false
Number.isInteger('123') //false
Number.isInteger(false) //false
Number.isInteger(Infinity) //false
Number.isInteger(-Infinity) //false
Number.isInteger(0 / 0) //false
Posted by: Guest on March-30-2020

Code answers related to "how to check if is integer javascript"

Code answers related to "Javascript"

Browse Popular Code Answers by Language