template-to-collection

Object, Map and WeakMap creation sugar using tagged template strings.

Installation

npm install template-to-collection

Note: The source is written in ES2015. It should fit right into your transpilation pipeline.

Usage

Create an Object with null prototype using the Obj tag

import C from 'template-to-collection'

let obj = C.Obj`a ${10} b ${'what'} fn ${v => v + 10}`

// will create {a: 10, b: 10, fn: [Function]} whose __proto__ will be `null`

Create a Map using the Map tag

import C from 'template-to-collection'

let map = C.Map`a ${10} b ${'what'} fn ${v => v + 10}`

// will create Map { 'a' => 10, 'fn' => [Function], 'b' => 'what' }

Create a WeakMap using the WMap tag

import C from 'template-to-collection'

let key = {a: 200}
let wmap = C.WMap`${key} ${10}`

// will create a WeakMap where wmap.has(key) === true

Note: If you intermix strings as keys and ${} expressions for keys, then things are gonna blow up.

For example, this is bad:

Obj${'key1'} ${10} key2 ${20}