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Comma-separated values (CSV) is a text file format that uses commas to separate values, and newlines to separate records. CSV is a common data exchange format that is widely supported by various applications and software, but it has some limitations and variations.
A flat-file database is a database stored in a file with no indexing or relationships between records. Learn about the history, examples, and modern implementations of flat-file databases.
E.164 is an ITU-T standard that defines a general format for international telephone numbers with up to fifteen digits. It includes country codes, global services, networks, groups of countries, and trials categories, and provides guidance on printing and DNS mapping of E.164 numbers.
Learn about the telephone number prefixes for reaching foreign countries or areas via international telecommunication networks. Find out the country code for Niger (227) and other countries in different world zones.
The North American Numbering Plan (NANP) is a telephone numbering system for twenty-five regions in twenty countries, primarily in North America and the Caribbean. It uses a three-digit area code to identify each numbering plan area (NPA) and a seven-digit telephone number for each subscriber.
Data wrangling is the process of transforming and mapping data from one raw form into another format for various purposes. Learn about the background, connection to data mining, benefits, core ideas and examples of data wrangling.
In computing, extract, transform, load (ETL) is a three-phase process where data is extracted from an input source, transformed (including cleaning), and loaded into an output data container.
A JavaScript function can check to see if a phone number is a valid format, i.e., is numeric, starts with a valid set of numbers ("0" for local, or an international dialing prefix followed by a valid country code and is not too short to be a phone number. At first a JavaScript function is used to clear out any spacer characters.