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Google I/O ’19から見る新しいJavaScript

Google I/O ’19から見る新しいJavaScript

Meguro.es # 21の資料です。
https://meguroes.connpass.com/event/125499/

資料ではtop-level awaitがStage2になっていますがStage3になりました。

Toshihisa Tomatsu

June 06, 2019
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  1. Google I/O’19͔ΒݟΔ ৽͍͠+BWB4DSJQU M e g u r o .

    e s # 2 1 2 0 1 9 / 0 6 / 0 6 @ t o s h i - t o m a
  2. ঺հ͞Ε͍ͯͨϓϩϙʔβϧ Array#{flat, flatMap} Private Class Fields Numeric Separators ؾʹͳͬͨ಺༰Λ͍͔ͭ͘঺հ BigInt

    Object.fromEntries String#matchAll Intl.*APIs globalThis Array#sort top-level await WeakRef Promise.{allSettled, any} ৽͍͠Syntax΍ඇಉظॲཧ ʹؔ͢ΔAPI, ࠃࡍԽରԠ etc
  3. ࢀߟ Private Class Field ͷಋೖʹ൐͏ JS ͷߏจ֦ு https://blog.jxck.io/entries/2019-03-14/private-class- field.html ES

    Class FieldsͷϓϥΠϕʔτϑΟʔϧυ͕ϋογϡͳมଶه๏ͳͷ͸ԿͰͳ Μͩͥʁ https://gist.github.com/teppeis/ 06c2b7e97c7d67684c3d3c94159893f3