摘要:
const isNull = (obj) => obj null; const isUndefined = (obj) => typeof obj 'undefined'; const isNullOrUndefined = (obj) => isUndefined(obj) || isNull(o 阅读全文
posted @ 2025-05-09 12:39
dawn-lc
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摘要:
const isNull = (obj) => obj null; const isUndefined = (obj) => typeof obj 'undefined'; const isNullOrUndefined = (obj) => isUndefined(obj) || isNull(o 阅读全文
posted @ 2025-05-09 12:01
dawn-lc
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