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75c72e917b
* chore: added new linter config * chore: linting fixes * chore: refactore in linting config and minor linting fixes
31 lines
709 B
JavaScript
31 lines
709 B
JavaScript
/**
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* Gen toc tree
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* @link https://github.com/killercup/grock/blob/5280ae63e16c5739e9233d9009bc235ed7d79a50/styles/solarized/assets/js/behavior.coffee#L54-L81
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* @param {Array} toc List of TOC elements
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* @param {Number} maxLevel Deep level
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* @return {Array} Headlines
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*/
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export function genTree(toc, maxLevel) {
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const headlines = [];
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const last = {};
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toc.forEach(headline => {
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const level = headline.level || 1;
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const len = level - 1;
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if (level > maxLevel) {
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return;
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}
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if (last[len]) {
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last[len].children = (last[len].children || []).concat(headline);
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} else {
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headlines.push(headline);
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}
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last[level] = headline;
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});
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return headlines;
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}
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