hu/lib/array.js

Functional utility helper library

{
    var _ns_ = {
        id: 'hu.lib.macros',
        doc: void 0
    };
    var hu_lib_function = require('./function');
    var curry = hu_lib_function.curry;
    var compose = hu_lib_function.compose;
    var hu_lib_type = require('./type');
    var isString = hu_lib_type.isString;
    var isArray = hu_lib_type.isArray;
    var isNumber = hu_lib_type.isNumber;
    var isUndef = hu_lib_type.isUndef;
    var isObject = hu_lib_type.isObject;
}
void 0;
void 0;
void 0;
void 0;
void 0;
void 0;
void 0;
void 0;
void 0;
void 0;
void 0;
{
    var _ns_ = {
        id: 'hu.lib.array',
        doc: void 0
    };
    var hu_lib_type = require('./type');
    var isArray = hu_lib_type.isArray;
}
var inArray = exports.inArray = function inArray() {
    var args = Array.prototype.slice.call(arguments, 0);
    return curry(function (arr, element) {
        return arr.indexOf(element) >= 0;
    }).apply(void 0, args);
};
var head = exports.head = function head(arr) {
    return isArray(arr) ? arr[0] : arr;
};
var first = exports.first = head;
var tail = exports.tail = function tail(arr) {
    return isArray(arr) ? arr.slice(1) : arr;
};
var rest = exports.rest = tail;
var last = exports.last = function last(arr) {
    return isArray(arr) ? arr.slice(-1) : arr;
};
var end = exports.end = last;
var initial = exports.initial = function initial(arr) {
    return isArray(arr) ? arr.slice(0, -1) : arr;
};
var flatten = exports.flatten = function flatten() {
    switch (arguments.length) {
    case 0:
        return [];
    case 1:
        var arr = arguments[0];
        return flatten(arr, []);
    case 2:
        var arr = arguments[0];
        var acc = arguments[1];
        isArray(arr) ? arr.forEach(function (el) {
            return flatten(el, acc);
        }) : (isUndef(arr) ? false : true) ? acc.push(arr) : void 0;
        return acc;
    default:
        throw RangeError('Wrong number of arguments passed');
    }
};