29 lines
850 B
TypeScript
29 lines
850 B
TypeScript
import _ from "lodash"
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import { z } from "zod";
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export const uint8 = z.number().nonnegative().lt(Math.pow(2, 8))
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export const uint16 = z.number().nonnegative().lt(Math.pow(2, 16))
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export const uint32 = z.number().nonnegative().lt(Math.pow(2, 32))
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export const int8 = z.number().lt(Math.pow(2, 7)).gte(-Math.pow(2, 8))
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export const int16 = z.number().lt(Math.pow(2, 15)).gte(-Math.pow(2, 16))
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export const int32 = z.number().lt(Math.pow(2, 31)).gte(-Math.pow(2, 32))
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export namespace fun {
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export function numberToBytes(num: number, bytesLength: number): Uint8Array {
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var array = new Uint8Array(bytesLength)
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for (let i = 0; i < bytesLength; i++) {
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array[i] = num & (0xFF << (i << 3))
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}
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return array
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}
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export function randomFromArray(array: Array<any>) {
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return array[_.random(0, array.length - 1, false)]
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}
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}
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