JavaScript – Number.isNaN() Method
The Number.isFinite() method returns true if the value is NaN (not a number), yet the type is a Number.
JavaScript – Number.isSafeInteger() Method
The Number.isFinite() method returns true if a number is a safe integer, and also of a Number data type.
JavaScript – Number.MAX_VALUE Property
The Number.MAX_VALUE property returns the largest possible number in JavaScript, which is 1.7976931348623157e+308.
JavaScript – Number.MIN_VALUE Property
The Number.MIN_VALUE property returns the smallest possible number in JavaScript, which is 5e-324.
JavaScript – Number.NEGATIVE_INFINITY Property
The Number.NEGATIVE_INFINITY property returns negative infinity.
JavaScript – Number.POSITIVE_INFINITY Property
The Number.POSITIVE_INFINITY property returns positive infinity.
JavaScript – Number.prototype Property
The Number.prototype property allows the addition of new properties and methods to numbers.
JavaScript – Number toExponential() Method
The Number toExponential() method converts a number into exponential notation.
JavaScript – Number toFixed() Method
The Number toFixed() method converts a number to a string, while rounding the string to a specified number of decimals.
JavaScript – Number toLocaleString() Method
The Number toLocaleString() method returns a number as a string, using locale settings.
JavaScript – Number toPrecision() Method
The Number toPrecision() method formats a number to a specified length, adding a decimal point and zeroes if necessary to achieve the length.
JavaScript – Number valueOf() Method
The Number valueOf() method returns the primitive value of a number.
JavaScript – Object constructor Property
The Object constructor property returns the function that created the Object prototype.
JavaScript – Object.keys() Method
The Object.keys() method returns an array iterator object with the keys of an object, without changing the original object.
JavaScript – Object prototype Property
The Object prototype property allows the addition of new properties and methods to objects.
JavaScript – Object toString() Method
The Object toString() method returns an object as a string or “[object Object]” if it cannot return a string.
JavaScript – Object valueOf() Method
The Object valueOf() method returns the primitive value of an object, or the object itself if it has no primitive.
JavaScript – RegExp g Modifier
In JavaScript RegExp, the “g” modifier specifies a global match, which finds ALL matches, and NOT just the first match.