		import faunadb from 'faunadb';
		/**
		* @param {Array<any>} array - The array to take the tail from.
		* @returns {Array<any>} - The tail of the array.
		*
		* Tail() accepts a Fauna Array and returns a new array consisting of every
		* element except the first. If the array is empty, Tail() returns an empty array.
		*
		* ### Consumes per call
		* * 0 Read Ops
		* * 0 Write Ops
		* * 1 ComputeOp (19 FQL verbs)
		*
		* ### Dependencies:
		* none
		*
		* ### Usage in Fauna Schema Migrate:
		* ```js
		* import { Tail } from '@fauna-labs/fql-utilities/collections';
		* export default Tail();
		* ```
		*
		* ### Usage in FQL:
		* ```fql
		* Let(
		* {
		* array: [0, 1, 2],
		* shortArray: Call("Tail", Var("array"))
		* },
		* Equals(Count(Var("shortArray")), 2) // true
		* )
		*```
		*/
		export declare function Tail(): faunadb.Expr;
		export declare function Tail(replace?: boolean): faunadb.Expr;

dist/collections/tail.js

		@@ -27,3 +27,3 @@ "use strict";
		const q = faunadb_1.default.query;
		const { Abort, Count, If, IsArray, Lambda, Let, LT, Query, Reverse, Subtract, Take, Var } = q;
		const { Abort, Count, Exists, If, IsArray, Lambda, Let, LT, Query, Update, Reverse, Subtract, Take, Var } = q;
		/**
		@@ -61,6 +61,14 @@ * @param {Array<any>} array - The array to take the tail from.
		*/
		function Tail() {
		const body = Query(Lambda(["array"], If(IsArray(Var("array")), Let({ tail_length: Subtract(Count(Var("array")), 1) }, If(LT(Var("tail_length"), 0), Var("array"), Reverse(Take(Var("tail_length"), Reverse(Var("array")))))), Abort("Tail() requires one argument that is an array."))));
		// export function Tail(): faunadb.Expr {
		// return If(
		// Exists(Function("Tail")),
		// Update(Function("Tail"), { body: body }),
		// CreateFunction({ name: "Tail", body: body })
		// );
		// }
		function Tail(replace = false) {
		return (0, faunadb_1.CreateFunction)({
		name: "Tail",
		body: Query(Lambda(["array"], If(IsArray(Var("array")), Let({ tail_length: Subtract(Count(Var("array")), 1) }, If(LT(Var("tail_length"), 0), Var("array"), Reverse(Take(Var("tail_length"), Reverse(Var("array")))))), Abort("Tail() requires one argument that is an array."))))
		body: body
		});
		@@ -67,0 +75,0 @@ }

package.json

		{
		"name": "@fauna-labs/fql-utilities",
		"version": "0.1.1",
		"version": "0.1.2",
		"description": "A library of FQL utilities for Fauna Schema Migrate, implemented in TypeScript.",
		@@ -10,3 +10,3 @@ "main": "dist/index.js",
		"prepare": "tsc",
		"test": "echo \"Error: no test specified\" && exit 1"
		"test": "jest"
		},
		@@ -37,4 +37,10 @@ "repository": {
		"devDependencies": {
		"@babel/core": "^7.15.8",
		"@babel/preset-env": "^7.15.8",
		"@babel/preset-typescript": "^7.15.0",
		"@types/jest": "^27.0.2",
		"babel-jest": "^27.2.5",
		"jest": "^27.2.5",
		"typescript": "^4.4.3"
		}
		}

tsconfig.json

		@@ -16,3 +16,3 @@ {
		"exclude": ["node_modules", "test", "dist"],
		"include": ["src/*/"]
		"include": ["src/*/", "tests/index.test.ts"]
		}

dist/collections/tail.js.map

Sorry, the diff of this file is not supported yet

@fauna-labs/fql-utilities - npm Package Compare versions

New alerts