Emoji Algebra

Transcript

1. 1.

   Emoji Algebra Radoslav Stankov 02/08/2018

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   None
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   Radoslav Stankov @rstankov http://rstankov.com http://github.com/rstankov

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   None
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   None
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   Emoji are ideograms and smileys used in electronic messages and

   web pages. They are much like emoticons, but emoji are actual pictures instead of typographics. 
 Originally meaning pictograph, the word emoji comes from Japanese e (ֆ, "picture") + moji (จࣈ, "character"). The resemblance to the English words emotion and emoticon is purely coincidental.
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   Emoji are ideograms and smileys used in electronic messages and

   web pages. They are much like emoticons, but emoji are actual pictures instead of typographics. 
 Originally meaning pictograph, the word emoji comes from Japanese e (ֆ, "picture") + moji (จࣈ, "character"). The resemblance to the English words emotion and emoticon is purely coincidental.
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   Emoji are ideograms and smileys used in electronic messages and

   web pages. They are much like emoticons, but emoji are actual pictures instead of typographics. 
 Originally meaning pictograph, the word emoji comes from Japanese e (ֆ, "picture") + moji (จࣈ, "character"). The resemblance to the English words emotion and emoticon is purely coincidental. !
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   "

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    ? ? ? ?

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    ? ? ?

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    ? ?

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    ?

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    None
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    None
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    # Free icon set

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    None
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    "$".length === ?

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    "$".length === 1

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    "$".length === 1 % ⛔ Wrong!

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    "$".length === 2

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    "$".length === 2 ' ✅ Correct!

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    None
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    ")".charCodeAt(0) === 55357

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    ")".charCodeAt(0) === 55357 % ⛔ Wrong!

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    ")".codePointAt(0) === 128568

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    ")".codePointAt(0) === 128568 ' ✅ Correct!

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    "BG"

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    "BG".replace(/./g, c => String.fromCodePoint(c.charCodeAt(0) + 127397))

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    "BG".replace(/./g, c => String.fromCodePoint(c.charCodeAt(0) + 127397)) === *

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    None
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    "+" + "\u200D" + "❤" + "\u200D" + "-"

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    "+" + "\u200D" + "❤" + "\u200D" + "-"

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    "+" + "\u200D" + "❤" + "\u200D" + "-"

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    "+" + "\u200D" + "❤" + "\u200D" + "-" ===

    "."
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    "+" + "\u200D" + "❤" + "\u200D" + "-" ===

    "." ZWJ Zero Width Joiner
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    None
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    "-"+"\u200D" + "+"+ "\u200D" +"/"+ "\u200D" + "0" === "1"

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    [..."1"] === ["-", "+", "/", "0"]

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    "2".length === 1 "❤".length === 2 "3".length === 11

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    function textWithEmojiCount(string){ const split = string.split("\u{200D}"); const count = split.reduce((c,

    s) => { return c + [...s.split(/[\ufe00-\ufe0f]/).join("")].length; }, 0); return Math.round(count / split.length); }
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    textWithEmojiCount("2") === 1 textWithEmojiCount("❤") === 1 textWithEmojiCount("3") === 1

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    None
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    "4"
 "4" + "5" === "6" "4" + "7" ===

    "8"
 "4" + "9" === ":" "4" + ";" === "<" "4" + "=" === ">"
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    "+"

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    "+" + "\u200D" + "?"

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    "+" + "\u200D" + "?" === "@"

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    "+" + ";" + "\u200D" + "?" === "A"

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    None
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    B

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    Thanks C