javascript check if number
//Updated dec 2020
// 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!
}check to see if number is a decimal javascript
The Number. isInteger() method determines whether a
value an integer.
This method returns true if the value is of the type
Number, and an integer (a number without decimals).
Otherwise it returns false.Copyright © 2021 Codeinu
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