Programming-Idioms

Edit summary for version 55 by javajosh:
[JS] Make more consistent with the other examples

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2019-09-26, 19:49:53

2019-09-26, 19:50:46

Idiom #8 Initialize a new map (associative array)

Declare a new map object x, and provide some (key, value) pairs as initial content.

Declare a new map object x, and provide some (key, value) pairs as initial content.

table dictionary hash

table dictionary hash

let x = new Map([["a",1],["b",2]]);

const x = new Map([["one",1],["two",2]]);

The Map constructor can take an array of [key, value] pairs.

The Map constructor can take an array of [key, value] pairs.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map

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