39 lines
951 B
TypeScript
39 lines
951 B
TypeScript
/**
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* NumberDisplay
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*
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* Deterministic number formatting for display.
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* Avoids Intl and toLocaleString to prevent SSR/hydration mismatches.
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*/
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export class NumberFormatter {
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/**
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* Formats a number with thousands separators (commas).
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* Example: 1234567 -> "1,234,567"
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*/
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static format(value: number): string {
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const parts = value.toString().split('.');
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parts[0] = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ',');
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return parts.join('.');
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}
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/**
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* Formats a number in compact form (e.g., 1.2k, 1.5M).
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*/
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static formatCompact(value: number): string {
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if (value >= 1000000) {
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return `${(value / 1000000).toFixed(1)}M`;
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}
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if (value >= 1000) {
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return `${(value / 1000).toFixed(1)}k`;
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}
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return value.toString();
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}
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/**
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* Formats a number as currency.
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*/
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static formatCurrency(value: number, currency: string): string {
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return `${currency} ${this.format(value)}`;
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}
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}
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