The isNaN() function determines whether a value is an illegal number (Not-a-Number). This function returns true if the value equates to NaN. Otherwise it returns false. This function is different from the Number specific Number.isNaN() method. The global isNaN() function, converts the tested value to a Number, then tests it.
Given two given arrays of equal length, the task is to find if given arrays are equal or not. Two arrays are said to be equal if both of them contain same set of elements, arrangements (or permutation) of elements may be different though. Note: If there are repetitions, then counts of repeated elements must also be same for two array to be equal.
Example - Using IS NOT NULL with the SELECT Statement. When testing for a non-NULL value, IS NOT NULL is the recommended comparison operator to use in SQL. Let's start by looking at an example that shows how to use the IS NOT NULL condition in a SELECT statement. In this example, we have a table called products with the following data.
Decide whether a number or equation is equal or not equal. Customize equations using whole numbers, addition or subtraction.