mirror of
https://github.com/element-hq/element-web.git
synced 2024-12-16 03:31:31 +03:00
42 lines
1.4 KiB
TypeScript
42 lines
1.4 KiB
TypeScript
/*
|
|
Copyright 2021 The Matrix.org Foundation C.I.C.
|
|
|
|
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.
|
|
*/
|
|
|
|
/**
|
|
* Returns the default number if the given value, i, is not a number. Otherwise
|
|
* returns the given value.
|
|
* @param {*} i The value to check.
|
|
* @param {number} def The default value.
|
|
* @returns {number} Either the value or the default value, whichever is a number.
|
|
*/
|
|
export function defaultNumber(i: unknown, def: number): number {
|
|
return Number.isFinite(i) ? Number(i) : def;
|
|
}
|
|
|
|
export function clamp(i: number, min: number, max: number): number {
|
|
return Math.min(Math.max(i, min), max);
|
|
}
|
|
|
|
export function sum(...i: number[]): number {
|
|
return [...i].reduce((p, c) => c + p, 0);
|
|
}
|
|
|
|
export function percentageWithin(pct: number, min: number, max: number): number {
|
|
return (pct * (max - min)) + min;
|
|
}
|
|
|
|
export function percentageOf(val: number, min: number, max: number): number {
|
|
return (val - min) / (max - min);
|
|
}
|