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33 lines
765 B
33 lines
765 B
'use strict';
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module.exports = arrayDepth;
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function arrayDepth(arr) {
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if (!Array.isArray(arr)) {
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return { min: 0, max: 0, containsNonArrayItem: true };
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}
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if (arr.length === 0) {
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return { min: 1, max: 1, containsNonArrayItem: false };
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}
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if (arr.length === 1 && !Array.isArray(arr[0])) {
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return { min: 1, max: 1, containsNonArrayItem: false };
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}
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const res = arrayDepth(arr[0]);
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for (let i = 1; i < arr.length; ++i) {
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const _res = arrayDepth(arr[i]);
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if (_res.min < res.min) {
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res.min = _res.min;
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}
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if (_res.max > res.max) {
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res.max = _res.max;
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}
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res.containsNonArrayItem = res.containsNonArrayItem || _res.containsNonArrayItem;
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}
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res.min = res.min + 1;
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res.max = res.max + 1;
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return res;
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} |