Iterateur

A powerful iterator for JavaScript.

Try it

How to use

Node.js

• by require node -r iterateur/register
• by optional require
  • require('iterateur').registerNumberIterator()
  • require('iterateur').registerRegExpIterator()
  • ...

Browser

TODO

Demo

Number

console.log([...10]); // [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ]
console.log([...-10]); // [ 0, -1, -2, -3, -4, -5, -6, -7, -8, -9 ]
console.log([...2.5]); // [ 2, 3, 4 ]
console.log([...-2.5]); // [ 5, 4, 3 ]
console.log([...10.2]); // [ 10, 9, 8, 7, 6, 5, 4, 3 ]
console.log([...-5.2]); // [ 2, 3, 4 ]
console.log([...10..step(2)]); // [ 0, 2, 4, 6, 8 ]

console.log([...NaN]); // throw TypeError
console.log([...Infinity]); // a infinite iterator
console.log([...-Infinity]); // a infinite iterator

RegExp

console.log([.../10/]); // [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ]
console.log([.../-10/]); // [ 0, -1, -2, -3, -4, -5, -6, -7, -8, -9 ]
console.log([.../2~5/]); // [ 2, 3, 4 ]
console.log([.../10:2/]); // [ 0, 2, 4, 6, 8 ]
console.log([.../1~10:2/]); // [ 1, 3, 5, 7, 9 ]

Function

console.log([...function i2_20$3(i) {
  return i < 10 ? `foo-${i}` : null;
}]);
// [ 'foo-2', 'foo-5', 'foo-9' ]
console.log([...() => [
  50,
  // /50/,
  // 'i2_20$3',
  i => i < 10 ? `foo-${i}` : null
]]);
// [ 'foo-2', 'foo-5', 'foo-9' ]

i function

const { i } = require('iterateur')

console.log([...i`3~10:2`])
console.log([...i('3~10:2')])
console.log([...i('3~10:2', [
  i => i + 1,
  i => `foo-${i}`
])])
console.log([...i`3~10:2
> ${i => i + 1}
> ${i => `foo-${i}`}
`])
console.log([...i(/10/)])
console.log([...i`${/10/}
> ${i => i + 1}
> ${i => `foo-${i}`}
`])
console.log([...i(10)])
console.log([...i`${10}
> ${i => i + 1}
> ${i => `foo-${i}`}
`])