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@firebase/firestore

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The Cloud Firestore component of the Firebase JS SDK.

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/** * @license * Copyright 2020 Google LLC * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import { FieldValue } from './field_value'; import { VectorValue } from './vector_value'; /** * Returns a sentinel for use with {@link @firebase/firestore/lite#(updateDoc:1)} or * {@link @firebase/firestore/lite#(setDoc:1)} with `{merge: true}` to mark a field for deletion. */ export declare function deleteField(): FieldValue; /** * Returns a sentinel used with {@link @firebase/firestore/lite#(setDoc:1)} or {@link @firebase/firestore/lite#(updateDoc:1)} to * include a server-generated timestamp in the written data. */ export declare function serverTimestamp(): FieldValue; /** * Returns a special value that can be used with {@link @firebase/firestore/lite#(setDoc:1)} or {@link * @firebase/firestore/lite#(updateDoc:1)} that tells the server to union the given elements with any array * value that already exists on the server. Each specified element that doesn't * already exist in the array will be added to the end. If the field being * modified is not already an array it will be overwritten with an array * containing exactly the specified elements. * * @param elements - The elements to union into the array. * @returns The `FieldValue` sentinel for use in a call to `setDoc()` or * `updateDoc()`. */ export declare function arrayUnion(...elements: unknown[]): FieldValue; /** * Returns a special value that can be used with {@link (setDoc:1)} or {@link * updateDoc:1} that tells the server to remove the given elements from any * array value that already exists on the server. All instances of each element * specified will be removed from the array. If the field being modified is not * already an array it will be overwritten with an empty array. * * @param elements - The elements to remove from the array. * @returns The `FieldValue` sentinel for use in a call to `setDoc()` or * `updateDoc()` */ export declare function arrayRemove(...elements: unknown[]): FieldValue; /** * Returns a special value that can be used with {@link @firebase/firestore/lite#(setDoc:1)} or {@link * @firebase/firestore/lite#(updateDoc:1)} that tells the server to increment the field's current value by * the given value. * * If either the operand or the current field value uses floating point * precision, all arithmetic follows IEEE 754 semantics. If both values are * integers, values outside of JavaScript's safe number range * (`Number.MIN_SAFE_INTEGER` to `Number.MAX_SAFE_INTEGER`) are also subject to * precision loss. Furthermore, once processed by the Firestore backend, all * integer operations are capped between -2^63 and 2^63-1. * * If the current field value is not of type `number`, or if the field does not * yet exist, the transformation sets the field to the given value. * * @param n - The value to increment by. * @returns The `FieldValue` sentinel for use in a call to `setDoc()` or * `updateDoc()` */ export declare function increment(n: number): FieldValue; /** * Creates a new `VectorValue` constructed with a copy of the given array of numbers. * * @param values - Create a `VectorValue` instance with a copy of this array of numbers. * * @returns A new `VectorValue` constructed with a copy of the given array of numbers. */ export declare function vector(values?: number[]): VectorValue;