dc.jscrossfilter
How to calculate the total sales and make the displayed totals dynamic?
I need to show the total sales of my data to both sellers and cities. However, the values shown in the totals must be dynamic.
P.S. My table allows the user to select the rows, this is because the values are rendered according to each selection made. (This dynamism between the tables is already working perfectly).
The initial state of the Total is rendered with the general sum of all sellers and cities, below I show the tables with their respective totals, however, as shown in the image, the values are static and not dynamic.
I need it to be diahanic because if I select for example the seller João Luis and Miguel, the value to be shown in the total must be the sum of these two sellers.
I asked a question a while ago about How to add row in datatable - DC.js, a friend (@Gordon) who is helping me a lot in doubts with DC.js and Crossfilter told me to use crossfilter.add(). Unfortunately I couldn't do it the way suggested, so I'm here again with practically the same question (sorry for my stupidity).
var composite = dc.compositeChart('#composite');
var vendedorTable = dc.dataTable("#vendedores");
var citiesTable = dc.dataTable("#cities");
function remove_empty_bins(source_group) {
return {
top: function(N) {
return source_group.all().filter(function(d) {
return d.value.totalAno > 1e-3 ||
d.value.totalHomologo > 1e-3;
}).slice(0, N);
}
};
}
var adjustX = 10,
adjustY = 40;
var url = 'https://gist.githubusercontent.com/bernalvinicius/3cece295bc37de1697e7f83418e7fcc9/raw/a5820379ec6eae76ee792495cc5dd1685c977a73/vendedores.json';
d3.json(url).then(function(data) {
data.forEach(d =>
Object.assign(d, {
mes: d.Month,
atual: d.Vendas_Ano,
passado: d.Vendas_Ant
})
);
var cf = crossfilter(data);
vendedorDim = cf.dimension(function(d) {
return d.vendnm;
});
var vendedorGroup = vendedorDim.group().reduce(reduceAdd, reduceRemove, reduceInitial);
citiesDim = cf.dimension(function(d) {
return d.zona;
});
var citiesGroup = citiesDim.group().reduce(reduceAdd, reduceRemove, reduceInitial);
var dim = cf.dimension(dc.pluck('mes')),
grp1 = dim.group().reduceSum(dc.pluck('atual')),
grp2 = dim.group().reduceSum(dc.pluck('passado'));
var minMonth = dim.bottom(1)[0].mes;
var maxMonth = dim.top(1)[0].mes;
var all = cf.groupAll();
dc.dataCount(".dc-data-count")
.dimension(cf)
.group(all);
function reduceAdd(p, v) {
p.totalAno += +v.Vendas_Ano;
p.totalHomologo += +v.Vendas_Ant;
return p;
}
function reduceRemove(p, v) {
p.totalAno -= v.Vendas_Ano;
p.totalHomologo -= v.Vendas_Ant;
return p;
}
function reduceInitial() {
return {
totalAno: 0,
totalHomologo: 0,
};
}
// Fake Dimension
rank = function(p) {
return ""
};
// Chart by months
composite
.width(window.innerWidth - adjustX)
.height(300)
.x(d3.scaleLinear().domain([1, 12]))
.yAxisLabel("")
.xAxisLabel("Month")
.legend(dc.legend().x(500).y(0).itemHeight(13).gap(5))
.renderHorizontalGridLines(true)
.compose([
dc.lineChart(composite)
.dimension(dim)
.colors('steelblue')
.group(grp1, "Currently Year"),
dc.lineChart(composite)
.dimension(dim)
.colors('darkorange')
.group(grp2, "Last Year")
])
.brushOn(true);
composite.brush().extent([-0.5, data.length + 1.5])
composite.extendBrush = function(brushSelection) {
if (brushSelection) {
vendedorTable.filter(null);
vendedorDim.filter(null);
citiesTable.filter(null);
citiesDim.filter(null);
const point = Math.round((brushSelection[0] + brushSelection[1]) / 2);
return [
point - 0.5,
point + 0.5
];
}
};
// Sales Table
vendedorTable.width(500)
.height(480)
.dimension(remove_empty_bins(vendedorGroup))
.group(rank)
.columns([function(d) {
return d.key;
},
function(d) {
return Number(Math.round(d.value.totalAno * 100) / 100).toLocaleString("es-ES", {
minimumFractionDigits: 2
}) + '€';
},
function(d) {
return Number(Math.round(d.value.totalHomologo * 100) / 100).toLocaleString("es-ES", {
minimumFractionDigits: 2
}) + '€';
}
])
.sortBy(function(d) {
return d.value.totalAno
})
.order(d3.descending)
// Cities Table
citiesTable
.width(500)
.height(480)
.dimension(remove_empty_bins(citiesGroup))
.group(rank)
.columns([function(d) {
return d.key;
},
function(d) {
return Number(Math.round(d.value.totalAno * 100) / 100).toLocaleString("es-ES", {
minimumFractionDigits: 2
}) + '€';
},
function(d) {
return Number(Math.round(d.value.totalHomologo * 100) / 100).toLocaleString("es-ES", {
minimumFractionDigits: 2
}) + '€';
}
])
.controlsUseVisibility(true)
.sortBy(function(d) {
return d.value.totalAno
})
.order(d3.descending)
// Sales click events
vendedorTable.on('pretransition', function(table) {
table.selectAll('td.dc-table-column')
.on('click', function(d) {
let filters = table.filters().slice();
if (filters.indexOf(d.key) === -1)
filters.push(d.key);
else
filters = filters.filter(k => k != d.key);
if (filters.length === 0)
vendedorDim.filter(null);
else
vendedorDim.filterFunction(function(d) {
return filters.indexOf(d) !== -1;
})
table.replaceFilter([filters]);
citiesTable.filter(null);
citiesDim.filter(null);
composite.filter(null);
dc.redrawAll();
});
let filters = table.filters();
table.selectAll('tr.dc-table-row')
.classed('sel-rows', d => filters.indexOf(d.key) !== -1);
});
// Cities click events
citiesTable.on('pretransition', function(table) {
table.selectAll('td.dc-table-column')
.on('click', function(d) {
let filters = table.filters().slice();
if (filters.indexOf(d.key) === -1)
filters.push(d.key);
else
filters = filters.filter(k => k != d.key);
if (filters.length === 0)
citiesDim.filter(null);
else
citiesDim.filterFunction(function(d) {
return filters.indexOf(d) !== -1;
})
table.replaceFilter([filters]);
vendedorTable.filter(null);
vendedorDim.filter(null);
composite.filter(null);
dc.redrawAll();
});
let filters = table.filters();
table.selectAll('tr.dc-table-row')
.classed('sel-rows', d => filters.indexOf(d.key) !== -1);
});
dc.renderAll();
// reset functions
$('#reset').on('click', function() {
vendedorTable.filter(null);
vendedorDim.filter(null);
citiesTable.filter(null);
citiesDim.filter(null);
composite.filter(null);
dc.redrawAll();
});
$('#resetTable').on('click', function() {
vendedorTable.filter(null);
vendedorDim.filter(null);
citiesTable.filter(null);
citiesDim.filter(null);
composite.filter(null);
dc.redrawAll();
});
$('#resetTable2').on('click', function() {
vendedorTable.filter(null);
vendedorDim.filter(null);
citiesTable.filter(null);
citiesDim.filter(null);
composite.filter(null);
dc.redrawAll();
});
/****************************************************************************/
// Functions to handle responsive
apply_resizing(composite, adjustX, adjustY, function(composite) {
composite.legend().x(window.innerWidth - 200);
});
var find_query = function() {
var _map = window.location.search.substr(1).split('&').map(function(a) {
return a.split('=');
}).reduce(function(p, v) {
if (v.length > 1)
p[v[0]] = decodeURIComponent(v[1].replace(/\+/g, " "));
else
p[v[0]] = true;
return p;
}, {});
return function(field) {
return _map[field] || null;
};
}();
var resizeMode = find_query('resize') || 'widhei';
function apply_resizing(composite, adjustX, adjustY, onresize) {
if (resizeMode === 'viewbox') {
composite
.width(300)
.height(200)
.useViewBoxResizing(true);
d3.select(composite.anchor()).classed('fullsize', false);
} else {
adjustX = adjustX || 0;
adjustY = adjustY || adjustX || 0;
composite
.width(window.innerWidth - adjustX)
.height(300);
window.onresize = function() {
if (onresize) {
onresize(composite);
}
composite
.width(window.innerWidth - adjustX)
.height(300);
if (composite.rescale) {
composite.rescale();
}
composite.redraw();
};
}
}
});#composite {
padding: 10px;
}
.dc-table-group {
visibility: collapse;
}
tr.dc-table-row.sel-rows {
background-color: lightblue;
}
.brush .custom-brush-handle {
display: none;
}<head>
<!-- favicon -->
<link rel="shortcut icon" href="https://img.icons8.com/nolan/64/puzzle.png">
<!-- bootstrap.css -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<!-- bootstrap-theme.css -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
<!-- dc.css -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/dc/2.1.8/dc.css">
<!-- jquery.js -->
<script src="https://code.jquery.com/jquery-3.4.1.js" integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU=" crossorigin="anonymous"></script>
<!-- bootstrap.js -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<!-- d3.v5.js -->
<script src="https://d3js.org/d3.v5.js"></script>
<!-- crossfilter.js -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/crossfilter/1.3.12/crossfilter.js"></script>
<!-- dc.js -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/dc/3.1.8/dc.js"></script>
<title>Chart</title>
</head>
<body>
<div id="composite"></div>
<div class="container-fluid">
<div class="row content">
<div class="col-md-12">
<div class="col-md-6">
<table class="table" id="totaisVendedores">
<thead>
<tr>
<th>Total Sales</th>
<th>Current Year</th>
<th>Last Year</th>
</tr>
</thead>
</table>
</div>
<div class="col-md-6">
<table class="table" id="totaisCities">
<thead>
<tr>
<th>Total City</th>
<th>Current Year</th>
<th>Last Year</th>
</tr>
</thead>
</table>
</div>
<div class="col-md-6">
<table class="table" id="vendedores">
<thead>
<tr>
<th>Sales</th>
<th>Current Year</th>
<th>Last Year</th>
</tr>
</thead>
</table>
</div>
<div class="col-md-6">
<table class="table" id="cities">
<thead>
<tr>
<th>City</th>
<th>Current Year</th>
<th>Last Year</th>
</tr>
</thead>
</table>
</div>
</div>
</div>
</div>
</body>Solution
Sorry, I completely misread your last question. It was nice of you to accept the answer, but you really didn't have to do that. :)
In order to add totals, you can add a tfoot section to your table
<tfoot>
<tr>
<th>TOTAL</th>
<th id="total-current-year"></th>
<th id="total-last-year"></th>
</tr>
</tfoot>
and drive it with a NumberDisplay widget.
const totalCYDisplay = dc.numberDisplay('#total-current-year')
.group(totalAll)
.valueAccessor(d => d.totalAno)
The default formatting is .2s but numberDisplay accepts any d3-format instance.
If you don't like the animation, you can set .transitionDuration(0)
var composite = dc.compositeChart('#composite');
var vendedorTable = dc.dataTable("#vendedores");
var citiesTable = dc.dataTable("#cities");
function remove_empty_bins(source_group) {
return {
top: function(N) {
return source_group.all().filter(function(d) {
return d.value.totalAno > 1e-3 ||
d.value.totalHomologo > 1e-3;
}).slice(0, N);
}
};
}
var adjustX = 10,
adjustY = 40;
var url = 'https://gist.githubusercontent.com/bernalvinicius/3cece295bc37de1697e7f83418e7fcc9/raw/a5820379ec6eae76ee792495cc5dd1685c977a73/vendedores.json';
d3.json(url).then(function(data) {
data.forEach(d =>
Object.assign(d, {
mes: d.Month,
atual: d.Vendas_Ano,
passado: d.Vendas_Ant
})
);
var cf = crossfilter(data);
vendedorDim = cf.dimension(function(d) {
return d.vendnm;
});
var vendedorGroup = vendedorDim.group().reduce(reduceAdd, reduceRemove, reduceInitial);
citiesDim = cf.dimension(function(d) {
return d.zona;
});
var citiesGroup = citiesDim.group().reduce(reduceAdd, reduceRemove, reduceInitial);
const totalAll = cf.groupAll()
.reduce(reduceAdd, reduceRemove, reduceInitial);
debugger;
var dim = cf.dimension(dc.pluck('mes')),
grp1 = dim.group().reduceSum(dc.pluck('atual')),
grp2 = dim.group().reduceSum(dc.pluck('passado'));
var minMonth = dim.bottom(1)[0].mes;
var maxMonth = dim.top(1)[0].mes;
var all = cf.groupAll();
dc.dataCount(".dc-data-count")
.dimension(cf)
.group(all);
function reduceAdd(p, v) {
p.totalAno += +v.Vendas_Ano;
p.totalHomologo += +v.Vendas_Ant;
return p;
}
function reduceRemove(p, v) {
p.totalAno -= v.Vendas_Ano;
p.totalHomologo -= v.Vendas_Ant;
return p;
}
function reduceInitial() {
return {
totalAno: 0,
totalHomologo: 0,
};
}
// Fake Dimension
rank = function(p) {
return ""
};
// Chart by months
composite
.width(window.innerWidth - adjustX)
.height(300)
.x(d3.scaleLinear().domain([1, 12]))
.yAxisLabel("")
.xAxisLabel("Month")
.legend(dc.legend().x(500).y(0).itemHeight(13).gap(5))
.renderHorizontalGridLines(true)
.compose([
dc.lineChart(composite)
.dimension(dim)
.colors('steelblue')
.group(grp1, "Currently Year"),
dc.lineChart(composite)
.dimension(dim)
.colors('darkorange')
.group(grp2, "Last Year")
])
.brushOn(true);
composite.brush().extent([-0.5, data.length + 1.5])
composite.extendBrush = function(brushSelection) {
if (brushSelection) {
vendedorTable.filter(null);
vendedorDim.filter(null);
citiesTable.filter(null);
citiesDim.filter(null);
const point = Math.round((brushSelection[0] + brushSelection[1]) / 2);
return [
point - 0.5,
point + 0.5
];
}
};
// Sales Table
vendedorTable.width(500)
.height(480)
.dimension(remove_empty_bins(vendedorGroup))
.group(rank)
.columns([function(d) {
return d.key;
},
function(d) {
return Number(Math.round(d.value.totalAno * 100) / 100).toLocaleString("es-ES", {
minimumFractionDigits: 2
}) + '€';
},
function(d) {
return Number(Math.round(d.value.totalHomologo * 100) / 100).toLocaleString("es-ES", {
minimumFractionDigits: 2
}) + '€';
}
])
.sortBy(function(d) {
return d.value.totalAno
})
.order(d3.descending)
// vendedors totals
const totalCYDisplay = dc.numberDisplay('#total-current-year')
.group(totalAll)
.valueAccessor(d => d.totalAno)
const totalLYDisplay = dc.numberDisplay('#total-last-year')
.group(totalAll)
.valueAccessor(d => d.totalHomologo)
// Cities Table
citiesTable
.width(500)
.height(480)
.dimension(remove_empty_bins(citiesGroup))
.group(rank)
.columns([function(d) {
return d.key;
},
function(d) {
return Number(Math.round(d.value.totalAno * 100) / 100).toLocaleString("es-ES", {
minimumFractionDigits: 2
}) + '€';
},
function(d) {
return Number(Math.round(d.value.totalHomologo * 100) / 100).toLocaleString("es-ES", {
minimumFractionDigits: 2
}) + '€';
}
])
.controlsUseVisibility(true)
.sortBy(function(d) {
return d.value.totalAno
})
.order(d3.descending)
// Sales click events
vendedorTable.on('pretransition', function(table) {
table.selectAll('td.dc-table-column')
.on('click', function(d) {
let filters = table.filters().slice();
if (filters.indexOf(d.key) === -1)
filters.push(d.key);
else
filters = filters.filter(k => k != d.key);
if (filters.length === 0)
vendedorDim.filter(null);
else
vendedorDim.filterFunction(function(d) {
return filters.indexOf(d) !== -1;
})
table.replaceFilter([filters]);
citiesTable.filter(null);
citiesDim.filter(null);
composite.filter(null);
dc.redrawAll();
});
let filters = table.filters();
table.selectAll('tr.dc-table-row')
.classed('sel-rows', d => filters.indexOf(d.key) !== -1);
});
// Cities click events
citiesTable.on('pretransition', function(table) {
table.selectAll('td.dc-table-column')
.on('click', function(d) {
let filters = table.filters().slice();
if (filters.indexOf(d.key) === -1)
filters.push(d.key);
else
filters = filters.filter(k => k != d.key);
if (filters.length === 0)
citiesDim.filter(null);
else
citiesDim.filterFunction(function(d) {
return filters.indexOf(d) !== -1;
})
table.replaceFilter([filters]);
vendedorTable.filter(null);
vendedorDim.filter(null);
composite.filter(null);
dc.redrawAll();
});
let filters = table.filters();
table.selectAll('tr.dc-table-row')
.classed('sel-rows', d => filters.indexOf(d.key) !== -1);
});
dc.renderAll();
// reset functions
$('#reset').on('click', function() {
vendedorTable.filter(null);
vendedorDim.filter(null);
citiesTable.filter(null);
citiesDim.filter(null);
composite.filter(null);
dc.redrawAll();
});
$('#resetTable').on('click', function() {
vendedorTable.filter(null);
vendedorDim.filter(null);
citiesTable.filter(null);
citiesDim.filter(null);
composite.filter(null);
dc.redrawAll();
});
$('#resetTable2').on('click', function() {
vendedorTable.filter(null);
vendedorDim.filter(null);
citiesTable.filter(null);
citiesDim.filter(null);
composite.filter(null);
dc.redrawAll();
});
/****************************************************************************/
// Functions to handle responsive
apply_resizing(composite, adjustX, adjustY, function(composite) {
composite.legend().x(window.innerWidth - 200);
});
var find_query = function() {
var _map = window.location.search.substr(1).split('&').map(function(a) {
return a.split('=');
}).reduce(function(p, v) {
if (v.length > 1)
p[v[0]] = decodeURIComponent(v[1].replace(/\+/g, " "));
else
p[v[0]] = true;
return p;
}, {});
return function(field) {
return _map[field] || null;
};
}();
var resizeMode = find_query('resize') || 'widhei';
function apply_resizing(composite, adjustX, adjustY, onresize) {
if (resizeMode === 'viewbox') {
composite
.width(300)
.height(200)
.useViewBoxResizing(true);
d3.select(composite.anchor()).classed('fullsize', false);
} else {
adjustX = adjustX || 0;
adjustY = adjustY || adjustX || 0;
composite
.width(window.innerWidth - adjustX)
.height(300);
window.onresize = function() {
if (onresize) {
onresize(composite);
}
composite
.width(window.innerWidth - adjustX)
.height(300);
if (composite.rescale) {
composite.rescale();
}
composite.redraw();
};
}
}
});#composite {
padding: 10px;
}
.dc-table-group {
visibility: collapse;
}
tr.dc-table-row.sel-rows {
background-color: lightblue;
}
.brush .custom-brush-handle {
display: none;
}<head>
<!-- favicon -->
<link rel="shortcut icon" href="https://img.icons8.com/nolan/64/puzzle.png">
<!-- bootstrap.css -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<!-- bootstrap-theme.css -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
<!-- dc.css -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/dc/2.1.8/dc.css">
<!-- jquery.js -->
<script src="https://code.jquery.com/jquery-3.4.1.js" integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU=" crossorigin="anonymous"></script>
<!-- bootstrap.js -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<!-- d3.v5.js -->
<script src="https://d3js.org/d3.v5.js"></script>
<!-- crossfilter.js -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/crossfilter/1.3.12/crossfilter.js"></script>
<!-- dc.js -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/dc/3.1.8/dc.js"></script>
<title>Chart</title>
</head>
<body>
<div id="composite"></div>
<div class="container-fluid">
<div class="row content">
<div class="col-md-12">
<div class="col-md-6">
<table class="table" id="totaisVendedores">
<thead>
<tr>
<th>Total Sales</th>
<th>Current Year</th>
<th>Last Year</th>
</tr>
</thead>
</table>
</div>
<div class="col-md-6">
<table class="table" id="totaisCities">
<thead>
<tr>
<th>Total City</th>
<th>Current Year</th>
<th>Last Year</th>
</tr>
</thead>
</table>
</div>
<div class="col-md-6">
<table class="table" id="vendedores">
<thead>
<tr>
<th>Sales</th>
<th>Current Year</th>
<th>Last Year</th>
</tr>
</thead>
<tfoot>
<tr>
<th>TOTAL</th>
<th id="total-current-year"></th>
<th id="total-last-year"></th>
</tr>
</tfoot>
</table>
</div>
<div class="col-md-6">
<table class="table" id="cities">
<thead>
<tr>
<th>City</th>
<th>Current Year</th>
<th>Last Year</th>
</tr>
</thead>
</table>
</div>
</div>
</div>
</div>
</body>- How to list all the removable devices with DBus and UDisks2?
- gobject/gnome/glib bindings for D using GIR?
- How do nested functions get compiled?
- The "this" pointer and message receiving in D
- 64-bit executables with DMD
- GtkD with D lang on Fedora
- Why Android used Java concept instead of D language or C or C++? But Chromium web browser is in C++, its very complicated match
- How to use MongoItemWriter to write a List<T>
- Why a function with protected modifier can be overridden and accessible every where?
- Convert Unicode const(uint)* to a dlang character type
- Compiling D with Code::Blocks
- DMD vs. GDC vs. LDC
- Rendering a font in raylib using freetype
- Digital Mars D compiler; acquiring ASM output
- D Programming: openssl rsa forward reference compiler error
- D compiler DMD doesn't link object files
- OPTLINK: Warning 23: No Stack
- Is there a limit in the amount of temporary generated symbols during a project build using dmd 2.063?
- Is this the right way to combine Garbage collected with none Garbage collected code in D
- D compiler (Digital Mars D Compiler) throwing error
- Which D Compiler to Use?
- Splitting a string treating multiple whitespace as one separator
- Proper way of passing array parameters to D functions
- Detailed Valgrind internals documentation
- Is it possible, in D, to tell the garbage collector to not scan a particular pointer (or anything below it)?
- Iterate over key/value pairs in associative array in D.
- Dlang associative array of an array of strings keyed by a string has unexpected behavior
- How to repeat a statement N times (simple loop)
- Is worth the effort to learn D?
- ld: undefined reference to object I can see in objdump