1 files changed, 20 insertions, 0 deletions
diff --git a/src/util/util/Array.ts b/src/util/util/Array.ts
index 1935fa7a..e1008aa2 100644
--- a/src/util/util/Array.ts
+++ b/src/util/util/Array.ts
@@ -19,3 +19,23 @@
export function containsAll(arr: any[], target: any[]) {
return target.every((v) => arr.includes(v));
}
+
+// Rory - 20/01/2023 - Add utility functions to aid with identification of file types in emojis
+export function arrayBufferMatchesArr(
+ haystack: Uint8Array,
+ needle: number[],
+ offset: number,
+) {
+ return arrayBufferMatches(haystack, new Uint8Array(needle), 0);
+}
+
+export function arrayBufferMatches(
+ haystack: Uint8Array,
+ needle: Uint8Array,
+ offset: number,
+) {
+ for (let i = 0; i < needle.length; i++) {
+ if (haystack[i + offset] !== needle[i]) return false;
+ }
+ return true;
+}
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