e_chart
library
Functions
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assertCheck(bool value, {String? msg})
→ void
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ave(Iterable<num> list)
→ num
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aveBy<T>(Iterable<T> list, num call(T))
→ num
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buildDateRange(DateTime start, DateTime end, bool include)
→ List<DateTime>
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chunk<T>(Iterable<T>? list, [int size = 1])
→ List<List<T>>
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circlePoint(num radius, num angle, [Offset center = Offset.zero])
→ Offset
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给定一个半径和圆心计算给定角度对应的位置坐标
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clamp(num lower, num upper)
→ num
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computeDayDiff(DateTime start, DateTime end)
→ int
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concat<T>(Iterable<T>? iterable, [Iterable<T>? i2, Iterable<T>? i3, Iterable<T>? i4, Iterable<T>? i5, Iterable<T>? i6, Iterable<T>? i7, Iterable<T>? i8, Iterable<T>? i9, Iterable<T>? i10])
→ List<T>
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concat2<T>(Iterable<Iterable<T>> iterable)
→ List<T>
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convertTree<T extends TreeNode<T>, D extends TreeNode<D>>(T tree, D build(D?, T), {D? parent})
→ D
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dashPath(Path path, List<double> dash)
→ Path
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给定一个Path和dash数据返回一个新的Path
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difference<T>(Iterable<T>? list, [Iterable<T>? values])
→ List<T>
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differenceBy<T, K>(Iterable<T>? list, [Iterable<T>? values, K call(T)?])
→ List<T>
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differenceWith<T>(Iterable<T>? list, [Iterable<T>? values, bool comparator(T, T)?])
→ List<T>
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drop<T>(List<T>? list, [int n = 1])
→ void
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去除该List前n个元素
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dropRight<T>(List<T>? list, [int n = 1])
→ void
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dropRightWhen<T>(List<T>? list, bool call(T, int, List<T>))
→ void
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dropWhen<T>(List<T>? list, bool call(T, int, List<T>))
→ void
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each<T>(Iterable<T> list, void call(T, int))
→ void
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eachRight<T>(Iterable<T> list, void call(T, int))
→ void
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every<T>(Iterable<T> list, bool call(T))
→ bool
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判断列表里面的元素是否都满足条件
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extremes<T>(Iterable<T> list, num call(T))
→ List<num>
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fill<T>(List<T> list, Iterable<T> values, [int start = 0, int? end])
→ void
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find<T>(Iterable<T> list, bool call(T))
→ T?
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findLast<T>(Iterable<T> list, bool call(T))
→ T?
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flatten<T>(Iterable list)
→ List<T>
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将给定的嵌套数组全部合并成一层数组
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formatNumber(num number, [int fractionDigits = 2])
→ String
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groupBy<T, K>(Iterable<T> list, K convert(T))
→ Map<K, List<T>>
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分组
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intersection<T>(Iterable<Iterable<T>> list)
→ List<T>
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返回所有数据中都有的数据(交集)
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intersectionWhen<T>(Iterable<Iterable<T>> list, bool compare(T, T))
→ List<T>
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同上(后续优化)
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isTrue(dynamic obj)
→ bool
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模拟js 对象为真判断
判断一个数是否为真(0,"",null为假)
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jsAnd(dynamic a, dynamic b)
→ dynamic
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模拟javaScript a&& b的返回值
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jsAnd2(dynamic a, dynamic b)
→ bool
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jsIf2(bool a)
→ int
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模拟js 三目运算符返回结果
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jsOr(dynamic a, dynamic b)
→ dynamic
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模拟javaScript a|| b的返回值
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jsOr2(num a, num b)
→ bool
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log10(num v)
→ num
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logPrint(String s)
→ dynamic
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map2<T, K>(Iterable<T> list, K convert(T))
→ List<K>
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max(Iterable<num> list)
→ num
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maxBy<T>(Iterable<T> list, num convert(T))
→ T
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measureAxisNameTextMaxSize(Iterable<BaseAxis> axisList, Direction direction, num maxWidth)
→ List<Size>
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给定坐标轴集和方向
测量单个坐标轴名占用的最大宽度和高度
当 对齐为 center时 直接返回0
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medium(Iterable<num> list)
→ num
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中位数
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mediumBy<T>(Iterable<T> list, num call(T))
→ num
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mergePath(Path p1, Path p2)
→ Path
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合并两个Path,并将其头相连，尾相连
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min(Iterable<num> list)
→ num
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minBy<T>(Iterable<T> list, num convert(T))
→ T
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padLeft(int c, int width, [String fill = ''])
→ String
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padRight(int c, int width, [String fill = ''])
→ String
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percentPath(Path path, double percent)
→ Path
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给定一个Path和路径百分比返回给定百分比路径
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pull<T>(Iterable<T> list, Iterable<T> values)
→ void
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删除List中在 values中出现的值
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range(int start, int end, [int step = 1])
→ List<int>
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reduce<T>(Iterable<T> list, num call(num, T), [num initValue = 0])
→ num
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reduce2<T, K>(Iterable<T> list, K call(K, T), K initValue)
→ K
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reverse2<T>(List<T> list)
→ List<T>
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reverseSelf<T>(List<T> list)
→ void
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some<T>(Iterable<T> list, bool call(T))
→ bool
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判断集合中的元素是否存在
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sum(Iterable<num> list)
→ num
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sumBy<T>(Iterable<T> list, num call(T))
→ num
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toAlignment(num angle, [bool inner = false])
→ Alignment
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给定角度值返回其文本绘制对齐模式
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toTree<D, T extends TreeNode<T>>(D data, List<D> childrenCallback(D), T build(T?, D), {int deep = 0, T? parent, int sort(T, T)?})
→ T
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union<T>(Iterable<Iterable<T>> list)
→ List<T>
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返回一个按顺序排列的唯一值的List
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unionBy<T, K>(Iterable<Iterable<T>> list, K? convert(T))
→ List<T>
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uniq<T>(Iterable<T> list)
→ List<T>
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创建一个去重后的数组
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uniqBy<T, K>(Iterable<T> list, K? convert(T))
→ List<T>
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withOut<T>(Iterable<T> list, Iterable<T> values)
→ List<T>
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创建一个剔除所有给定值的新数组
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xor<T>(Iterable<Iterable<T>> list)
→ List<T>
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返回一个由给定数据生成的唯一值的数组
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xorBy<T, K>(Iterable<Iterable<T>> list, K convert(T))
→ List<T>
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Typedefs
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ConvertFun<I, O>
= O? Function(I input)
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EventCallback<T>
= void Function(T)
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FormatterFun<T>
= String Function(T t)
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FormatterFun2<A, B>
= String Function(A, B)
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Fun1<A, B>
= B Function(A)
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Fun2<A, B, C>
= C Function(A, B)
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Fun3<A, B, C, D>
= D Function(A, B, C)
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Fun4<A, B, C, D, E>
= E Function(A, B, C, D)
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OffsetFun<T>
= double Function(T data)
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RadiusDiffFun
= SNumber Function(int deep, int maxDeep, num radius)
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StyleFun<D, S>
= S? Function(D d, UserAction? action)
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StyleFun2<A, B, S>
= S? Function(A a, B b, UserAction? action)
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StyleFun3<A, B, C, S>
= S? Function(A a, B b, C c, UserAction? action)
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StyleFun4<A, B, C, D, S>
= S? Function(A a, B b, C c, D d, UserAction? action)
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TreeFun<T extends TreeNode<T>>
= bool Function(T node, int index, T startNode)
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ValueCallback<T>
= VoidFun1<T>
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VisitCallback<T>
= bool Function(QuadNode<T> node, num left, num top, num right, num bottom)
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VoidFun1<A>
= void Function(A)
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VoidFun2<A, B>
= void Function(A, B)
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VoidFun3<A, B, C>
= void Function(A, B, C)
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VoidFun4<A, B, C, D>
= void Function(A, B, C, D)
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