[xogo.git] / utils / array.js

export const ArrayFun = {

  // Double array intialization
  init: function(size1, size2, initElem) {
    return [...Array(size1)].map(() => Array(size2).fill(initElem));
  },

  range: function(max) {
    return [...Array(max).keys()];
  },

  toObject: function(keys, values) {
    if (!Array.isArray(values))
      // Second argument is a scalar
      values = Array(keys.length).fill(values);
    return (
      ArrayFun.range(keys.length)
      .reduce((acc, curr) => (acc[keys[curr]] = values[curr], acc), {})
    );
  }

};
Commit	Line	Data
	1	export const ArrayFun = {
	2
	3	// Double array intialization
	4	init: function(size1, size2, initElem) {
	5	return [...Array(size1)].map(() => Array(size2).fill(initElem));
	6	},
	7
	8	range: function(max) {
	9	return [...Array(max).keys()];
	10	},
	11
	12	toObject: function(keys, values) {
	13	if (!Array.isArray(values))
	14	// Second argument is a scalar
	15	values = Array(keys.length).fill(values);
	16	return (
	17	ArrayFun.range(keys.length)
	18	.reduce((acc, curr) => (acc[keys[curr]] = values[curr], acc), {})
	19	);
	20	}
	21
	22	};