Initial data commit

Task/Multiplication-tables/JavaScript/multiplication-tables-3.js

@@ -0,0 +1,45 @@
+(function (m, n) {
+
+    // [m..n]
+    function range(m, n) {
+        return Array.apply(null, Array(n - m + 1)).map(function (x, i) {
+            return m + i;
+        });
+    }
+
+    // Monadic bind (chain) for lists
+    function mb(xs, f) {
+        return [].concat.apply([], xs.map(f));
+    }
+
+    var rng = range(m, n),
+        lstTable = [['x'].concat(   rng )]
+                         .concat(mb(rng,   function (x) {
+        return       [[x].concat(mb(rng,   function (y) {
+            return y < x ? [''] : [x * y];               // triangle only
+    }))]}));
+
+    /*                        FORMATTING OUTPUT                             */
+
+    // [[a]] -> bool -> s -> s
+    function wikiTable(lstRows, blnHeaderRow, strStyle) {
+        return '{| class="wikitable" ' + (
+            strStyle ? 'style="' + strStyle + '"' : ''
+        ) + lstRows.map(function (lstRow, iRow) {
+            var strDelim = ((blnHeaderRow && !iRow) ? '!' : '|');
+
+            return '\n|-\n' + strDelim + ' ' + lstRow.map(function (v) {
+                return typeof v === 'undefined' ? ' ' : v;
+            }).join(' ' + strDelim + strDelim + ' ');
+        }).join('') + '\n|}';
+    }
+
+    // Formatted as WikiTable
+    return wikiTable(
+        lstTable, true,
+        'text-align:center;width:33em;height:33em;table-layout:fixed;'
+    ) + '\n\n' +
+
+    // or simply stringified as JSON
+    JSON.stringify(lstTable);
+})(1, 12);