neige d'aoust

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====== Emoji decoder ======

Hide any message in emojis!

===== Decoder =====

<html>
<input type="text" id="emoji" /><button onclick="conv()">submit</button>
<pre id="out"></pre>
<script>
function conv(){
$emoji=document.querySelector("#emoji");
$out=document.querySelector("#out");
$out.innerHTML = new TextDecoder().decode(new Uint8Array([...$emoji.value].map(a=>a.codePointAt()-(a<16?0xfe00:0xe0100)).slice(1)))
}
</script>
</html>

===== Encoder =====

<html>
<script type="module" src="https://cdn.jsdelivr.net/npm/emoji-picker-element@^1/index.js"></script>
<emoji-picker></emoji-picker>
<textarea id="emoji2" onchange="encode()" cols="40" rows="8"></textarea>
<br/><button onclick="encode()">submit</button>
<input type="text" readonly size="1" id="out2"></span>
<script>
var emo = 0x1fae0;
document.querySelector("emoji-picker").addEventListener('emoji-click', e => {emo=e.detail.unicode.codePointAt();encode()});
function encode(){
var $emoji2=document.querySelector("#emoji2");
var $out=document.querySelector("#out2");
$out.value = String.fromCodePoint(emo,...[...new TextEncoder().encode($emoji2.value)].map(a=>a+(a<16?0xfe00:0xe0100)));
}
</script>
</html>

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