関連ワード:  how to check in array in javascript    how to search in array in javascript    how to check value in array in javascript    how to check contains in array in javascript    how to check duplicates in array in javascript    how to check value exists in array in javascript    how to check value present in array in javascript    how to check element present in array in javascript    how to check string exists in array in javascript    how to check multiple values in array in javascript