The article discusses the simplest way to determine if a variable is an array in JavaScript using the instanceof operator. Two examples demonstrate its effectiveness: one in which a variable holds an array and another in which a variable is a string. Additionally, the article suggests creating a reusable function called ismyvararray that encapsulates this logic, returning a boolean value indicating whether or not the provided variable is an array. This promotes cleaner code and easy checks.
The easiest way to check if a variable is an array is to use the instanceof operator. This method is simple and effective.
To create a reusable function for checking arrays, define ismyvararray(myVar) { return (myVar instanceof Array);} which returns true for arrays.
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