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Chain ↔ (JS Syntax) to group functions into single line via Dot Notation

aka Chaining, Chain-Notation, Function-Chaining, Method-Chaining

Dot Notation​

. JS Syntax to Chain & Object Literal

Square Bracket Notation​

JS Syntax to access element from Object via (string) key

Optional Chaining​

JS Syntax to conditionally call Chain or Dot Notation if function/property exists, else return undefined

References​

  1. Dot Notation ↔ . JS Syntax to Chain & Object Literal

  2. Optional Chaining ↔ JS Syntax to conditionally call Chain or Dot Notation if function/property exists, else return undefined

  3. .catch() ↔ Chain Callback to handle Promise Error propagation

  4. .then() ↔ async Chain Method to execute Callback on Fullfill, auto-pass Promise Value as arg

  5. .json() ↔ async Chain Method to return Promise parse as JSON format

  6. .finally() ↔ Chain Callback to call at end, regardless of Fullfill or Reject