to-grid/dist/index.js

generate an array of elements split into groups in specified layout

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var Layout;
(function (Layout) {
    Layout[Layout["N"] = 0] = "N";
    Layout[Layout["Z"] = 1] = "Z";
})(Layout = exports.Layout || (exports.Layout = {}));
function toGrid(arr, numOfColumns, layout) {
    if (layout === void 0) { layout = Layout.Z; }
    var result = [];
    var numOfRows = Math.ceil(arr.length / numOfColumns);
    arr.forEach(function (it, index) {
        var rowIndex, columnIndex;
        if (layout === Layout.Z) {
            rowIndex = Math.floor(index / numOfColumns);
            columnIndex = index % numOfColumns;
        }
        else {
            rowIndex = index % numOfRows;
            columnIndex = Math.floor(index / numOfRows);
        }
        result[rowIndex] = result[rowIndex] || [];
        result[rowIndex][columnIndex] = it;
    });
    return result;
}
exports.default = toGrid;
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