Mirone
7d1e5bce0d
* chore: add dev container * feat: add drag handle when hovering cell * feat: add column drag and drop * feat: add support for row drag and drop * refactor: extract preview controllers * fix: hover issue * refactor: add handle controller * chore: f * chore: remove log * chore: remove dev files * feat: hide other drop indicators when table dnd working * feat: add auto scroll and bug fix * chore: f * fix: firefox
30 lines
679 B
TypeScript
30 lines
679 B
TypeScript
/**
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* Transposes a 2D array by flipping columns to rows.
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*
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* Transposition is a familiar algebra concept where the matrix is flipped
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* along its diagonal. For more details, see:
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* https://en.wikipedia.org/wiki/Transpose
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*
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* @example
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* ```javascript
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* const arr = [
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* ['a1', 'a2', 'a3'],
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* ['b1', 'b2', 'b3'],
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* ['c1', 'c2', 'c3'],
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* ['d1', 'd2', 'd3'],
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* ];
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*
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* const result = transpose(arr);
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* result === [
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* ['a1', 'b1', 'c1', 'd1'],
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* ['a2', 'b2', 'c2', 'd2'],
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* ['a3', 'b3', 'c3', 'd3'],
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* ]
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* ```
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*/
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export function transpose<T>(array: T[][]): T[][] {
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return array[0].map((_, i) => {
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return array.map((column) => column[i])
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})
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}
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