From 9a0b5de3f02c65b4e4986361de96fec68ae79ff4 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sat, 9 Jan 2021 17:19:29 +0800
Subject: ...

---
 FrontEnd/src/app/utilities/url.ts | 50 ++++++---------------------------------
 1 file changed, 7 insertions(+), 43 deletions(-)

(limited to 'FrontEnd/src/app/utilities')

diff --git a/FrontEnd/src/app/utilities/url.ts b/FrontEnd/src/app/utilities/url.ts
index 17ead5b2..21ad6304 100644
--- a/FrontEnd/src/app/utilities/url.ts
+++ b/FrontEnd/src/app/utilities/url.ts
@@ -1,52 +1,16 @@
-//copied from https://stackoverflow.com/questions/5999118/how-can-i-add-or-update-a-query-string-parameter
-export function updateQueryString(
-  key: string,
-  value: undefined | string | null,
-  url: string
-): string {
-  const re = new RegExp("([?&])" + key + "=.*?(&|#|$)(.*)", "gi");
-  let hash;
-
-  if (re.test(url)) {
-    if (typeof value !== "undefined" && value !== null) {
-      return url.replace(re, "$1" + key + "=" + value + "$2$3");
-    } else {
-      hash = url.split("#");
-      url = hash[0].replace(re, "$1$3").replace(/(&|\?)$/, "");
-      if (typeof hash[1] !== "undefined" && hash[1] !== null) {
-        url += "#" + hash[1];
-      }
-      return url;
-    }
-  } else {
-    if (typeof value !== "undefined" && value !== null) {
-      const separator = url.includes("?") ? "&" : "?";
-      hash = url.split("#");
-      url = hash[0] + separator + key + "=" + value;
-      if (typeof hash[1] !== "undefined" && hash[1] !== null) {
-        url += "#" + hash[1];
-      }
-      return url;
-    } else {
-      return url;
-    }
-  }
-}
-
 export function applyQueryParameters<T>(url: string, query: T): string {
   if (query == null) return url;
 
+  const params = new URLSearchParams();
+
   for (const [key, value] of Object.entries(query)) {
-    if (typeof value === "string") url = updateQueryString(key, value, url);
-    else if (typeof value === "number")
-      url = updateQueryString(key, String(value), url);
-    else if (typeof value === "boolean")
-      url = updateQueryString(key, value ? "true" : "false", url);
-    else if (value instanceof Date)
-      url = updateQueryString(key, value.toISOString(), url);
+    if (typeof value === "string") params.set(key, value);
+    else if (typeof value === "number") params.set(key, String(value));
+    else if (typeof value === "boolean") params.set(key, String(value));
+    else if (value instanceof Date) params.set(key, value.toISOString());
     else {
       console.error("Unknown query parameter type. Param: ", value);
     }
   }
-  return url;
+  return url + "?" + params.toString();
 }
-- 
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