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* checkpoint vitepress docs * edits * edits * hero drop shadow * d3-array edits * resolve d3 * split d3-array * move d3-array stuff around * d3-array is collapsed: true * italicize parameter names * searching edits * update dependencies * d3-array edits * array edits * array edits * array edits * array edits * array edits * move files * array edits * array edits * array edits * getting started edits * modules page * array edits * more structure * live example * dsv edits * fetch edits * dsv edits * random edits * time format edits * time edits * time edits * modules edits * color edits * color edits * interpolate edits * scale-chromatic edits * selection edits * break up d3-interpolate * scale edits * time scale edits * scale edits * scale edits * band edits * band edits * more descriptive titles * band and point edits * sequential edits * diverging edits * quantize edits * quantile edits * threshold edits * doc edits * fix titles * sequential edits * axis edits * axis edits * axis edits * shape edits * shape edits * dark mode chart * dark mode chart * curve edits * interpolate edits * line edits * link edits * radial edits * pie edits * symbol edits * stack edits * stack examples * path edits * polygon edits * quadtree edits * random examples * ease edits * ease edits * ease edits * timer edits * delaunay edits * quadtree find example * voronoi edits * dispatch edits * contour edits * chord edits * chord edits * fix find highlight * quadtree animation * transition edits * transition edits * transition edits * zoom edits * drag edits * brush edits * force edits * voronoi neighbors example * hierarchy edits * api edits * community edits * getting started edits * geo edits * Add short "D3 in React" section (#3659) * Add short "D3 in React" section I know you removed the TODO but I was already trying to fill it in! I think just making the distinction of modules that touch the DOM and those that don't was super clarifying for me personally when I figured that out. And I always forget the most basic ref pattern (and still might've messed it up here). I don't think we should get into updating or interactivity or whatever, but I think just this much goes a long way toward demystifying (and showing just the most basic best practices). * forgot i made data generic, rm reference to normal distribution * useEffect cleans up after itself Co-authored-by: Mike Bostock <mbostock@gmail.com> * Update getting-started.md --------- Co-authored-by: Mike Bostock <mbostock@gmail.com> * build fixes * index edits --------- Co-authored-by: Toph Tucker <tophtucker@gmail.com>
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Interning values
The InternMap and InternSet classes extend the native JavaScript Map and Set classes, respectively, allowing Dates and other non-primitive keys by bypassing the SameValueZero algorithm when determining key equality. d3.group, d3.rollup and d3.index use an InternMap rather than a native Map.
new InternMap(iterable, key)
const valueByDate = new d3.InternMap([
[new Date("2021-01-01"), 42],
[new Date("2022-01-01"), 12],
[new Date("2023-01-01"), 45]
]);
Examples · Source · Constructs a new Map given the specified iterable of [key, value] entries. The keys are interned using the specified key function which defaults to object.valueOf for non-primitive values. For example, to retrieve a value keyed by a given date:
valueByDate.get(new Date("2022-01-01")) // 12
new InternSet(iterable, key)
const dates = new d3.InternSet([
new Date("2021-01-01"),
new Date("2022-01-01"),
new Date("2023-01-01")
]);
Examples · Source · Constructs a new Set given the specified iterable of values. The values are interned using the specified key function which defaults to object.valueOf for non-primitive values. For example, to query for a given date:
dates.has(new Date("2022-01-01")) // true