float point value range
Description
Not all numbers in the world can be represented in Javascript. The value range are identified by four special values in Javascript.
Number.MIN_VALUErepresents the smallest value in JavaScript.Number.MAX_VALUEstores the largest number.Number.NEGATIVE_INFINITYis the negative infinity.Number.POSITIVE_INFINITYis the positive infinity.
Example
var result = Number.MAX_VALUE + Number.MAX_VALUE;
console.log(result); //from w ww. j a v a2s . c o m
console.log(Number.MAX_VALUE);
console.log(Number.MIN_VALUE);
console.log(Number.NEGATIVE_INFINITY);
console.log(Number.POSITIVE_INFINITY);
if((Math.sqrt(-2)) != Number.NEGATIVE_INFINITY_){
console.log("This is not equal to NEGATIVE_INFINITY");
}
else{
console.log("This is equal to NEGATIVE_INFINITY");
}
if((Math.exp(999)) <= Number.POSITIVE_INFINITY_){
console.log("This is less than positive infinity");
}
else{
console.log("This is greater than POSITIVE_INFINITY");
}
if((99999*99999) <= Number.MAX_VALUE){
console.log("greater than the maximum value");
}
if((0.0000000001) >= Number.MIN_VALUE){
console.log("The number is not the minimum value");
}
The code above generates the following result.
