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authorcrupest <crupest@outlook.com>2020-05-30 16:23:25 +0800
committercrupest <crupest@outlook.com>2020-05-30 16:23:25 +0800
commit68ca8b0976efe90c0c40bcae69f0825671b98bad (patch)
tree9333baf56fd4e20e1e98edcc6afbbde9d82dcd3f /Timeline/ClientApp/src/helper.ts
parent7e393559d2883a37b1be0c82cccc06bc97c3d102 (diff)
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Merge front end to this repo. But I need to wait for aspnet core support for custom port and package manager for dev server.
Diffstat (limited to 'Timeline/ClientApp/src/helper.ts')
-rw-r--r--Timeline/ClientApp/src/helper.ts35
1 files changed, 35 insertions, 0 deletions
diff --git a/Timeline/ClientApp/src/helper.ts b/Timeline/ClientApp/src/helper.ts
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+//copied from https://stackoverflow.com/questions/5999118/how-can-i-add-or-update-a-query-string-parameter
+export function updateQueryString(
+ key: string,
+ value?: string | null,
+ url?: string
+): string {
+ if (!url) url = window.location.href;
+ 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;
+ }
+ }
+}