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11 lines
289 B
11 lines
289 B
1 year ago
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export default function(callback) {
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for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
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for (var group = groups[j], i = 0, n = group.length, node; i < n; ++i) {
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if (node = group[i]) callback.call(node, node.__data__, i, group);
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}
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}
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return this;
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}
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