59 lines
1.6 KiB
TypeScript
59 lines
1.6 KiB
TypeScript
/*
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* Copyright 2025 coze-dev Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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export function isFunction<T extends (...args: unknown[]) => unknown>(
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value: unknown,
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): value is T {
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return typeof value === 'function';
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}
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function is(userAgent: string, platform: string): boolean {
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if (typeof navigator !== 'undefined') {
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if (navigator.userAgent && navigator.userAgent.indexOf(userAgent) >= 0) {
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return true;
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}
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}
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if (typeof process !== 'undefined') {
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return process.platform === platform;
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}
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return false;
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}
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export const isWindows = is('Windows', 'win32');
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export const isOSX = is('Mac', 'darwin');
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export function parseCssMagnitude(
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value: string | null,
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defaultValue: number,
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): number;
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export function parseCssMagnitude(
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value: string | null,
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defaultValue?: number,
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): number | undefined {
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if (value) {
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let parsed: number;
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if (value.endsWith('px')) {
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parsed = parseFloat(value.substring(0, value.length - 2));
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} else {
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parsed = parseFloat(value);
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}
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if (!isNaN(parsed)) {
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return parsed;
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}
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}
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return defaultValue;
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}
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