22 lines
472 B
TypeScript
22 lines
472 B
TypeScript
import _flatten from 'lodash/flatten';
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/**
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* 类似于join，但是返回一个数组
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* join会将元素强制转化为字符串
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*
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* 改函数可以用于join ReactNode
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*
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* @example joinArray([1, 2, 3], '5') => [1, '5', 2, '5', 3]
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*/
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export function joinArray<T, K>(arr: T[], separator: K): (T | K)[] {
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return _flatten(
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arr.map((item, i) => {
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if (i === 0) {
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return [item];
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} else {
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return [separator, item];
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}
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})
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);
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}
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