52 lines
2.6 KiB
TypeScript
52 lines
2.6 KiB
TypeScript
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// Type definitions for thenBy
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// Definitions by: Teun Duynstee (with significant help from @HonoluluHenk)
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type SortOrder = "asc" | "desc" | -1 | 1;
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declare class opt {
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direction?:SortOrder;
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ignoreCase?:boolean;
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}
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declare class typedOpt<T> extends opt {
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cmp?: (a:T, b:T)=> number;
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}
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interface IThenBy<T> {
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(v1: T, v2: T) : number;
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/**
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* Full format to compare two elements and determine which sorts first.
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* @param compare function that receives two values from the sorted array and returns a number indicating which comes first: < 0: first comes first, 0: doesn't matter, > 0: second comes first.
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* @param direction can be used to reverse the sorting by passing -1
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**/
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thenBy<T>(compare: ((v1: T, v2: T) => number), direction?: SortOrder | opt): IThenBy<T>;
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/**
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* Shorthand for selecting a value to sort on from the sorted element.
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* @param select function that receives a value from the sorted array and selects the thing to sort on
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* @param direction reverse by passing -1. opt for other options
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**/
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thenBy<T, U>(select: ((v: T) => U), direction?: SortOrder | typedOpt<U>): IThenBy<T>;
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/**
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* Shorthand for sorting on a simple property.
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* @param byPropertyName is the name of the property to sort on as a string
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* @param direction reverse by passing -1. opt for other options
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**/
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thenBy<T>(byPropertyName: (keyof T), direction?: SortOrder | typedOpt<any>): IThenBy<T>;
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}
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declare module "thenby" {
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/**
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* Full format to compare two elements and determine which sorts first.
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* @param compare function that receives two values from the sorted array and returns a number indicating which comes first: < 0: first comes first, 0: doesn't matter, > 0: second comes first.
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* @param direction can be used to reverse the sorting by passing -1
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**/
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export function firstBy<T>(compare: ((v1: T, v2: T) => number), direction?: SortOrder | opt): IThenBy<T>;
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/**
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* Shorthand for selecting a value to sort on from the sorted element.
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* @param select function that receives a value from the sorted array and selects the thing to sort on
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* @param direction reverse by passing -1. opt for other options
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**/
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export function firstBy<T,U>(select: ((v: T) => U), direction?: SortOrder | typedOpt<U>): IThenBy<T>;
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/**
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* Shorthand for sorting on a simple property.
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* @param byPropertyName is the name of the property to sort on as a string
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* @param direction reverse by passing -1. opt for other options
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**/
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export function firstBy<T>(byPropertyName: (keyof T), direction?: SortOrder | typedOpt<any>): IThenBy<T>;
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}
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