Basic HTML version of Foils prepared 3 March 99

Foil 47 Parsing Functions

From Overview of JavaScript I -- Basic Web Scripting Language CPS616 Technologies of the Information Age -- Spring Semester 99. by Geoffrey C. Fox (Tom Scavo)
Parsing Functions for Foil 47
1 parseInt(...) and parseFloat(...) convert their arguments to numbers: parseFloat("12.34"); //returns 12.34 parseInt("12.34"); //returns 12 parseFloat("12.34 ft"); //returns 12.34 parseInt("111", 2); //returns 7 parseFloat("$12.34"); //returns NaN
2 A handy trick: var numeric_var = string_val - 0;
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