Answers for "js check if array[index] is false"

check if a variable is array in javascript

// inside if else check
if(Array.isArray(myVarToTest)) {
	// myVatToTest is an array
} else {
	// myVarToTest is not an array
}

javascript check array index null

if (array[index] != null) {
  // The == and != operators consider null equal to only null or undefined
}