Data validation
Data validation is important in various areas of computer science – database data entry, data warehousing, program input, networking. Any time data is communicated it […]
Month: June 2017
Process of detecting and correcting errors
There are three types of programming errors you need to understand. Syntax error Syntax is the structure of a language. Each programming language has its […]
Statements and control structures (selection and iteration)
Each line of code which performs an action is a statement. When a statement tests if something is true or false it is a control […]
Variables – local, global, and parameter
Local A local variable is only available to the module (or block of code) it is within. That is its “scope”. FUNCTION addThis(a, b) total […]
Variables, constants, and arrays
Variable A variable exists to store a value in a location (in memory) identified by a symbol (a name). When creating a variable we identify […]