Returns the first position of a search argument from the end of source string, or 0 if it was not found. The first character in the string is considered position 1.
Parameters
- Value to look for
- Index to start from (optional) - if omitted, search starts from the end of the string; index 1 is considered the first character in the string
- Length to search (optional) - if omitted, the rest of the string is searched
Example
pjs.define("source", { type: 'char', length: 15, initValue: 'Dr. Doolittle' });
pjs.define("pos", { type: 'unsigned integer', length: 5, decimals: 0 });
pos = source.scanReverse('l');
return pos;
// 12