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authorcrupest <crupest@outlook.com>2023-09-20 20:26:42 +0800
committerGitHub <noreply@github.com>2023-09-20 20:26:42 +0800
commitf836d77e73f3ea0af45c5f71dae7268143d6d86f (patch)
tree573cfafd972106d69bef0d41ff5f270ec3c43ec2 /FrontEnd/src/utilities/array.ts
parent4a069bf1268f393d5467166356f691eb89963152 (diff)
parent901fe3d7c032d284da5c9bce24c4aaee9054c7ac (diff)
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Merge pull request #1395 from crupest/dev
Refector 2023 v0.1
Diffstat (limited to 'FrontEnd/src/utilities/array.ts')
-rw-r--r--FrontEnd/src/utilities/array.ts41
1 files changed, 41 insertions, 0 deletions
diff --git a/FrontEnd/src/utilities/array.ts b/FrontEnd/src/utilities/array.ts
new file mode 100644
index 00000000..838e8744
--- /dev/null
+++ b/FrontEnd/src/utilities/array.ts
@@ -0,0 +1,41 @@
+export function copy_move<T>(
+ array: T[],
+ oldIndex: number,
+ newIndex: number,
+): T[] {
+ if (oldIndex < 0 || oldIndex >= array.length) {
+ throw new Error("Old index out of range.");
+ }
+
+ if (newIndex < 0) {
+ newIndex = 0;
+ }
+
+ if (newIndex >= array.length) {
+ newIndex = array.length - 1;
+ }
+
+ const result = array.slice();
+ const [element] = result.splice(oldIndex, 1);
+ result.splice(newIndex, 0, element);
+
+ return result;
+}
+
+export function copy_insert<T>(array: T[], index: number, element: T): T[] {
+ const result = array.slice();
+ result.splice(index, 0, element);
+ return result;
+}
+
+export function copy_push<T>(array: T[], element: T): T[] {
+ const result = array.slice();
+ result.push(element);
+ return result;
+}
+
+export function copy_delete<T>(array: T[], index: number): T[] {
+ const result = array.slice();
+ result.splice(index, 1);
+ return array;
+}