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es-number-ext

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Native number extensions for javascript and typescript.

23 lines (22 loc) 645 B
declare global { interface NumberConstructor { /** * Generates a random number based on mean and sd (normal distribution) * * @param {number} mean * - Mean for normal distribution * * @param {number} sd * - Standard deviation for normal distribution * * @return {number} * - A random number base on normal distribution * * @example * Number.randomND(3, 1) // might return 3.5 * Number.randomND(3.2, 0) // might return 3.2 */ randomND(mean: number, sd: number): number; } } export {};