105 lines
2.6 KiB
TypeScript
105 lines
2.6 KiB
TypeScript
export const randomInt = (low: number, high: number) =>
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Math.floor(Math.random() * (high - low) + low)
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export const getInitials = (
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str: string,
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splitBy: string = ' ',
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maxLength: number = 3
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) => {
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const words = str.toUpperCase().split(splitBy).slice(0, maxLength)
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const initials = words.map((word) => word[0]).join('')
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return initials
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}
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export const stringToHexColor = (str: string) => {
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let hash = 0
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for (let i = 0; i < str.length; i++) {
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hash = str.charCodeAt(i) + ((hash << 5) - hash)
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}
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let colour = '#'
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for (let i = 0; i < 3; i++) {
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let value = (hash >> (i * 8)) & 0xff
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colour += ('00' + value.toString(16)).substr(-2)
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}
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return colour
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}
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export interface FormattedBytes {
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size: number
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unit: Sizes
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}
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export type Sizes = 'B' | 'KiB' | 'MiB' | 'GiB' | 'TiB' | 'PiB' | 'EiB' | 'ZiB' | 'YiB'
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export function formatBytes(
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bytes: number,
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decimals = 2,
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customSize?: Sizes
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): FormattedBytes {
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if (bytes === 0) return { size: 0, unit: 'B' }
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const k = 1024
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const sizes = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB']
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const dm = decimals < 0 ? 0 : decimals
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const i = customSize ? sizes.indexOf(customSize) : Math.floor(Math.log(bytes) / Math.log(k))
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const size = parseFloat((bytes / Math.pow(k, i)).toFixed(dm))
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return {
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size,
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unit: sizes[i] as Sizes,
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}
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}
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export const bytesToString = (bytes: number, decimals = 2): string => {
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const k = 1024;
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if (bytes < 1) return '0 Bytes';
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decimals = Math.floor(Math.max(0, decimals));
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const i = Math.floor(Math.log(bytes) / Math.log(k));
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const value = Number((bytes / Math.pow(k, i)).toFixed(decimals));
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return `${value} ${['Bytes', 'KiB', 'MiB', 'GiB', 'TiB'][i]}`;
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}
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export const capitalize = (word: string) => {
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return word.charAt(0).toUpperCase() + word.slice(1)
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}
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export const convertTimeToSmallest = (seconds: number) => {
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const units = [
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[1, 'seconds'],
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[60, 'minutes'],
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[60 * 60, 'hours'],
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[60 * 60 * 24, 'days'],
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]
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let bestUnit = units[0]
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for (const unit of units) {
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if (seconds >= unit[0]) {
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bestUnit = unit
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}
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}
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return {
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time: seconds / (bestUnit[0] as number),
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unit: bestUnit[1] as string,
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}
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}
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export const hexToRgba = (hex: string, alpha = 1): string => {
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// noinspection RegExpSimplifiable
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if (!/#?([a-fA-F0-9]{2}){3}/.test(hex)) {
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return hex;
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}
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// noinspection RegExpSimplifiable
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const [r, g, b] = hex.match(/[a-fA-F0-9]{2}/g)!.map((v) => parseInt(v, 16));
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return `rgba(${r}, ${g}, ${b}, ${alpha})`;
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}
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export const classNames = (...classes: (string | undefined | null)[]) => {
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return classes.filter(Boolean).join(' ')
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}
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