195 lines
5.2 KiB
TypeScript
195 lines
5.2 KiB
TypeScript
export const isNotEmptyValue = (value: any) => {
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if (Array.isArray(value)) {
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return value.length > 0;
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}
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return !!value || value === 0 || value === false;
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};
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export const isNotEmptyValueAllowNull = (value: any) => {
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if (Array.isArray(value)) {
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return value.length > 0;
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}
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return !!value || value === 0 || value === false || value === null;
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};
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export const handleBatchRequest = async (
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list: any[],
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fn: (args: any) => void
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) => {
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return Promise.all(list.map((item) => fn(item)));
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};
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export const convertFileSize = (sizeInBytes: number, prec?: number) => {
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const precision = prec ?? 1;
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if (!sizeInBytes) {
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return '0';
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}
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if (sizeInBytes < 1024) {
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return `${sizeInBytes.toFixed(precision)} B`;
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} else if (sizeInBytes < 1024 * 1024) {
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return `${(sizeInBytes / 1024).toFixed(precision)} KiB`;
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} else if (sizeInBytes < 1024 * 1024 * 1024) {
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return `${(sizeInBytes / (1024 * 1024)).toFixed(precision)} MiB`;
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} else if (sizeInBytes < 1024 * 1024 * 1024 * 1024) {
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return `${(sizeInBytes / (1024 * 1024 * 1024)).toFixed(precision)} GiB`;
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} else {
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return `${(sizeInBytes / (1024 * 1024 * 1024 * 1024)).toFixed(precision)} TiB`;
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}
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};
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export const platformCall = () => {
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const platform = navigator.userAgent;
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const isMac = () => {
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return platform.indexOf('Mac') !== -1;
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};
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const isWin = () => {
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return platform.indexOf('Win') !== -1;
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};
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return {
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isMac: isMac(),
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isWin: isWin()
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};
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};
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export const formatTime = (seconds: number) => {
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if (isNaN(seconds) || !seconds || seconds === Infinity) {
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return '00:00';
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}
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const hrs = Math.floor(seconds / 3600);
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const mins = Math.floor((seconds % 3600) / 60);
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const secs = Math.floor(seconds % 60);
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const formatted = [
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hrs.toString().padStart(2, '0'),
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mins.toString().padStart(2, '0'),
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secs.toString().padStart(2, '0')
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];
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if (hrs > 0) {
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return `${formatted[0]}:${formatted[1]}:${formatted[2]}`;
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}
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return `${formatted[1]}:${formatted[2]}`;
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};
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export const formatNumber = (num: number) => {
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if (!num) {
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return '0';
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}
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if (num >= 1000000) {
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return (num / 1000000).toFixed(2) + 'M';
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} else if (num >= 1000) {
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return (num / 1000).toFixed(2) + 'k';
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} else {
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return num.toString();
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}
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};
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export function loadLanguageConfig(language: string) {
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// @ts-ignore
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const requireContext = require.context(`./${language}`, false, /\.ts$/);
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const languageConfig: Record<string, string> = {};
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requireContext.keys().forEach((fileName: any) => {
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const moduleConfig = requireContext(fileName).default;
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const moduleName = fileName.replace(/(\.\/|\.ts)/g, '');
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languageConfig[moduleName] = moduleConfig;
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});
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return languageConfig;
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}
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export function readBlob(blob: Blob): Promise<string> {
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return new Promise((resolve) => {
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const reader = new FileReader();
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reader.onload = function (e: any) {
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resolve(e.target.result);
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};
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reader.readAsText(blob, 'utf-8');
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});
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}
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export const cosineSimilarity = (vec1: number[], vec2: number[]) => {
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if (vec1.length !== vec2.length) {
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throw new Error('both vectors must have the same length');
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}
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const dotProduct = vec1.reduce(
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(sum, value, index) => sum + value * vec2[index],
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0
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);
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const magnitudeA = Math.sqrt(
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vec1.reduce((sum, value) => sum + value * value, 0)
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);
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const magnitudeB = Math.sqrt(
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vec2.reduce((sum, value) => sum + value * value, 0)
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);
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if (magnitudeA === 0 || magnitudeB === 0) {
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throw new Error('both vectors must have a length greater than 0');
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}
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return dotProduct / (magnitudeA * magnitudeB);
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};
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const htmlSpecialTags = /^<html>(.|\n|\r)*<\/html>$/i;
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export const isHTMLDocumentString = (str: string) => {
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return htmlSpecialTags.test(str?.trim());
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};
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// generate a random number between 0 and 64 bit
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export const generateRandomNumber = () => {
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// 16: 0x1000；32:0x100000000
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return Math.floor(Math.random() * 0x100000000);
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};
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function base64ToBlob(base64: string, contentType = '', sliceSize = 512) {
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try {
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const base64Content = base64.replace(/^data:image\/(png|jpg);base64,/, '');
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const byteCharacters = atob(base64Content);
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const byteArrays = [];
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for (let offset = 0; offset < byteCharacters.length; offset += sliceSize) {
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const slice = byteCharacters.slice(offset, offset + sliceSize);
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const byteNumbers = new Array(slice.length);
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for (let i = 0; i < slice.length; i++) {
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byteNumbers[i] = slice.charCodeAt(i);
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}
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const byteArray = new Uint8Array(byteNumbers);
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byteArrays.push(byteArray);
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}
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return new Blob(byteArrays, { type: contentType });
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} catch (error) {
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return null;
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}
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}
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export const base64ToFile = (base64String: string, fileName: string) => {
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try {
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if (!base64String) {
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return null;
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}
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console.log('base64String:', base64String);
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const match = base64String.match(/data:(.*?);base64,/);
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if (!match) {
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throw new Error('Invalid base64 string');
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}
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const contentType = match[1];
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const blob = base64ToBlob(base64String, contentType);
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if (!blob) {
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throw new Error('Failed to convert base64 to blob');
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}
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return new File([blob], fileName || contentType, { type: contentType });
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} catch (error) {
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return null;
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}
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};
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