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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | 16x 10x 16x | let yes!: boolean
/**
* 检查是否在浏览器环境中。
*
* @returns 返回检查结果
* @example
* ```typescript
* if (inBrowser()) {
* console.log('你在浏览器中')
* }
* ```
*/
export function inBrowser(): boolean {
if (yes == null) {
yes =
typeof window === 'object' &&
typeof window.document === 'object' &&
window.document.nodeType === 9
}
return yes
}
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