61 lines
1.4 KiB
TypeScript
61 lines
1.4 KiB
TypeScript
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/**
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* 获取文件名
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* @example filename("a/b/c.txt") // "c"
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*/
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export function filename(path: string): string {
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return basename(path.substring(0, path.lastIndexOf(".")));
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}
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/**
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* 获取路径的最后一部分
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* @example basename("a/b/c.txt") // "c.txt"
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*/
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export function basename(path: string): string {
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let index = path.lastIndexOf("/");
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index = index > -1 ? index : path.lastIndexOf("\\");
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if (index < 0) {
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return path;
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}
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return path.substring(index + 1);
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}
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/**
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* 获取文件扩展名
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* @example extname("a/b/c.txt") // "txt"
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*/
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export function extname(path: string): string {
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let index = path.lastIndexOf(".");
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if (index < 0) {
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return "";
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}
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return path.substring(index + 1);
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}
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/**
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* 首字母大写
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* @example firstUpperCase("useInfo") // "UseInfo"
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*/
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export function firstUpperCase(value: string): string {
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return value.charAt(0).toLocaleUpperCase() + value.slice(1);
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}
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/**
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* 获取地址栏参数
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* @example getUrlParam("a") // "1"
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*/
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export function getUrlParam(name: string): string | null {
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// #ifdef H5
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const params = new URLSearchParams(window.location.search);
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const value = params.get(name);
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return value !== null ? decodeURIComponent(value) : null;
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// #endif
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}
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/**
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* 连接路径
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* @example pathJoin("https://www.baidu.com/", "/a/b/c.txt") // "https://www.baidu.com/a/b/c.txt"
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*/
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export function pathJoin(...parts: string[]): string {
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return parts.map((part) => part.replace(/(^\/+|\/+$)/g, "")).join("/");
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}
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