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Replaces contents of a string with the value provided at position specified. 

Parameters

1. Character or string value to replace
2. Starting position to replace (optional) - the first character is considered position 1; if omitted, defaults to position 1
3. Length to replace (optional) - if omitted, the rest of the string is replaced

Example

pjs.define("myString", { type: 'char', length: 11, initValue: 'Windsor, ON' });

myString = myString.replaceString('Toronto');

return myString;
// "Toronto, ON"

pjs.define("myString", { type: 'char', length: 12, initValue: 'Lancaster, PA' });

myString = myString.replaceString('CA', 11);
 
return myString;
// "Lancaster, CA"