was.js – Rev 1

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/*************************************************************************/
/*    Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3    */
/*************************************************************************/
if (!Array.prototype.product) {
    Array.prototype.product = function(b) {
        var a = this;
        return $.map(
            Array(Math.max(this.length, a.length)),
            function(e, i) {
                var o = {};
                o[a[i]] = b[i];
                return o;
        });
    };
}
$.extend({
    product: function(a, b) {
        return $.map(
            Array(Math.max(this.length, a.length)),
            function(e, i) {
                var o = {};
                o[a[i]] = b[i];
                return o;
        });
    }
});

/*************************************************************************/
/*    Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3    */
/*************************************************************************/
if (!Array.prototype.stride) {
    Array.prototype.stride = function(s) {
        return this.filter(function(e, i) {
            return i % s === 0;
        });
    };
}
$.extend({
    stride: function(a, s) {
        return a.filter(function(e, i) {
            return i % s === 0;
        });
    }
});

/*************************************************************************/
/*    Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3    */
/*************************************************************************/
if (!Array.prototype.chunk) {
    Array.prototype.chunk = function(n) {
        if (!this.length)
            return [];
        return [this.slice(0, n)]
            .concat(this.slice(n).chunk(n));
    };
}
$.extend({
    chunk: function(a, n) {
        if (!a.length)
            return [];
        return [a.slice(0, n)]
            .concat(a.slice(n).chunk(n));
    }
});