first
Variable取数组的第一个元素,数组为空时返回默认值(默认为 `undefined`)
Signature
const first: <T>(array: readonly T[], defaultValue?: T | null | undefined) => T | null | undefinedExamples
first([1, 2, 3]) // 1
first([], 'empty') // 'empty'Source
node_modules/.pnpm/radash@12.1.1/node_modules/radash/dist/index.d.ts:43