JAVA SCRIPT NUMBER
var x = 3.14 | A number with decimals |
var y = 34 | A number without decimals |
var x = 123e5 | 12300000 |
var y = 123e-5 | 0.00123 |
NUMBER PROPERTIES
PROPERTIES | DESCRIPTION |
---|---|
constructor | Returns the function that created JavaScript's Number prototype |
MAX_VALUE | Returns the largest number possible in JavaScript |
MIN_VALUE | Returns the smallest number possible in JavaScript |
NEGATIVE_INFINITY | Represents negative infinity (returned on overflow) |
NaN | Represents a "Not-a-Number" value |
POSITIVE_INFINITY | Represents infinity (returned on overflow) |
prototype | Allows you to add properties and methods to an object |
NUMBER METHODS
METHOD | DESCRIPTION |
---|---|
isFinite() | Checks whether a value is a finite number |
isInteger() | Checks whether a value is an integer |
isNaN() | Checks whether a value is Number.NaN |
isSafeInteger() | Checks whether a value is a safe integer |
toExponential(x) | Converts a number into an exponential notation |
toFixed(x) | Formats a number with x numbers of digits after the decimal point |
toPrecision(x) | Formats a number to x length |
toString() | Converts a number to a string |
valueOf() | Returns the primitive value of a numbeR |
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