小程序初始提交

cool-unix/cool/utils/path.ts

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