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node_modules/@angular/common/esm2022/src/location/util.mjs

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+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+/**
+ * Joins two parts of a URL with a slash if needed.
+ *
+ * @param start  URL string
+ * @param end    URL string
+ *
+ *
+ * @returns The joined URL string.
+ */
+export function joinWithSlash(start, end) {
+    if (start.length == 0) {
+        return end;
+    }
+    if (end.length == 0) {
+        return start;
+    }
+    let slashes = 0;
+    if (start.endsWith('/')) {
+        slashes++;
+    }
+    if (end.startsWith('/')) {
+        slashes++;
+    }
+    if (slashes == 2) {
+        return start + end.substring(1);
+    }
+    if (slashes == 1) {
+        return start + end;
+    }
+    return start + '/' + end;
+}
+/**
+ * Removes a trailing slash from a URL string if needed.
+ * Looks for the first occurrence of either `#`, `?`, or the end of the
+ * line as `/` characters and removes the trailing slash if one exists.
+ *
+ * @param url URL string.
+ *
+ * @returns The URL string, modified if needed.
+ */
+export function stripTrailingSlash(url) {
+    const match = url.match(/#|\?|$/);
+    const pathEndIdx = match && match.index || url.length;
+    const droppedSlashIdx = pathEndIdx - (url[pathEndIdx - 1] === '/' ? 1 : 0);
+    return url.slice(0, droppedSlashIdx) + url.slice(pathEndIdx);
+}
+/**
+ * Normalizes URL parameters by prepending with `?` if needed.
+ *
+ * @param  params String of URL parameters.
+ *
+ * @returns The normalized URL parameters string.
+ */
+export function normalizeQueryParams(params) {
+    return params && params[0] !== '?' ? '?' + params : params;
+}
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