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