toCompact method
Returns a compact string representation (K, M, B, T).
1500000.toCompact() // '1.5M'
2300.toCompact() // '2.3K'
999.toCompact() // '999'
Implementation
String toCompact({int decimals = 1}) {
final abs = this.abs();
final sign = this < 0 ? '-' : '';
if (abs >= 1e12) return '$sign${(abs / 1e12).toStringAsFixed(decimals)}T';
if (abs >= 1e9) return '$sign${(abs / 1e9).toStringAsFixed(decimals)}B';
if (abs >= 1e6) return '$sign${(abs / 1e6).toStringAsFixed(decimals)}M';
if (abs >= 1e3) return '$sign${(abs / 1e3).toStringAsFixed(decimals)}K';
return toString();
}