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⚡ Add minor optimizations to data-uri->blob helper

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This commit is contained in:
Andrey Antukh 2023-09-19 13:45:56 +02:00 committed by Alonso Torres
parent 4f23852bca
commit 91224e5274
1 changed files with 5 additions and 3 deletions
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8
frontend/src/app/util/webapi.cljs
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@ -74,14 +74,16 @@
(defn data-uri->blob
[data-uri]
(let [[mtype b64-data] (str/split data-uri ";base64,")
(let [[mtype b64-data] (str/split data-uri ";base64," 2)
mtype (subs mtype (inc (str/index-of mtype ":")))
decoded (.atob js/window b64-data)
size (.-length ^js decoded)
content (js/Uint8Array. size)]
(doseq [i (range 0 size)]
(aset content i (.charCodeAt ^js decoded i)))
(loop [i 0]
(when (< i size)
(aset content i (.charCodeAt ^js decoded i))
(recur (inc i))))
(create-blob content mtype)))