Function: generateId()
generateId(
prefix,n):string
Generates a unique ID string, typically used as a DOM element ID.
Parameters
• prefix: string = 'racingbars'
String prefix for the ID (default: 'racingbars').
• n: number = 8
Number of random characters to append (default: 8).
Returns
string
A unique ID string combining the prefix and random characters.
Example
generateId(); // 'racingbars_a1b2c3d4'
generateId('chart', 6); // 'chart_x1y2z3'