39 lines
1 KiB
TypeScript
39 lines
1 KiB
TypeScript
export function pluralize(n: number, base: string, plural?: string): string {
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if (n === 1) {
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return base
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}
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if (plural) {
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return plural
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}
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return base + 's'
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}
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export function enforceLen(str: string, len: number, ellipsis = false): string {
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str = str || ''
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if (str.length > len) {
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return str.slice(0, len) + (ellipsis ? '...' : '')
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}
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return str
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}
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// https://stackoverflow.com/a/52171480
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export function toHashCode(str: string, seed = 0): number {
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let h1 = 0xdeadbeef ^ seed,
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h2 = 0x41c6ce57 ^ seed
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for (let i = 0, ch; i < str.length; i++) {
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ch = str.charCodeAt(i)
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h1 = Math.imul(h1 ^ ch, 2654435761)
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h2 = Math.imul(h2 ^ ch, 1597334677)
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}
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h1 = Math.imul(h1 ^ (h1 >>> 16), 2246822507)
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h1 ^= Math.imul(h2 ^ (h2 >>> 13), 3266489909)
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h2 = Math.imul(h2 ^ (h2 >>> 16), 2246822507)
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h2 ^= Math.imul(h1 ^ (h1 >>> 13), 3266489909)
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return 4294967296 * (2097151 & h2) + (h1 >>> 0)
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}
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export function countLines(str: string | undefined): number {
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if (!str) return 0
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return str.match(/\n/g)?.length ?? 0
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}
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