Multiplication tables: Difference between revisions
Content added Content deleted
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<lang JavaScript>(function (m, n) { |
<lang JavaScript>(function (m, n) { |
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// [m..n] |
// [m..n] |
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function range(m, n) { |
function range(m, n) { |
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}); |
}); |
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} |
} |
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// Monadic bind (chain) for lists |
// Monadic bind (chain) for lists |
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function |
function mb(xs, f) { |
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return [].concat.apply([], xs.map(f)); |
return [].concat.apply([], xs.map(f)); |
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} |
} |
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var |
var rng = range(m, n), |
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lstTable = [['x'].concat( |
lstTable = [['x'].concat( rng )] |
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.concat(mb(rng, function (x) { |
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return [[x].concat(mb(rng, function (y) { |
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| ⚫ | |||
chain(lstRange, function (x) { |
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return y < x ? [''] : [x * y]; // triangle only |
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}))]})); |
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}) |
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); |
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/* FORMATTING OUTPUT */ |
/* FORMATTING OUTPUT */ |
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// [[a]] -> bool -> s -> s |
// [[a]] -> bool -> s -> s |
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function wikiTable(lstRows, blnHeaderRow, strStyle) { |
function wikiTable(lstRows, blnHeaderRow, strStyle) { |
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) + lstRows.map(function (lstRow, iRow) { |
) + lstRows.map(function (lstRow, iRow) { |
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var strDelim = ((blnHeaderRow && !iRow) ? '!' : '|'); |
var strDelim = ((blnHeaderRow && !iRow) ? '!' : '|'); |
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return '\n|-\n' + strDelim + ' ' + lstRow.map(function (v) { |
return '\n|-\n' + strDelim + ' ' + lstRow.map(function (v) { |
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return typeof v === 'undefined' ? ' ' : v; |
return typeof v === 'undefined' ? ' ' : v; |
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}).join('') + '\n|}'; |
}).join('') + '\n|}'; |
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} |
} |
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// Formatted as WikiTable |
// Formatted as WikiTable |
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return wikiTable( |
return wikiTable( |
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'text-align:center;width:33em;height:33em;table-layout:fixed;' |
'text-align:center;width:33em;height:33em;table-layout:fixed;' |
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) + '\n\n' + |
) + '\n\n' + |
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// or simply stringified as JSON |
// or simply stringified as JSON |
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JSON.stringify(lstTable); |
JSON.stringify(lstTable); |
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})(1, 12);</lang> |
})(1, 12);</lang> |
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