25 lines
789 B
JavaScript
25 lines
789 B
JavaScript
var isFunction = require('./type/is-function');
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var isArray = require('./type/is-array');
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var groupBy = require('./group-by');
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var groupToMap = function groupToMap(data, condition) {
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if (!condition) {
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return {
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0: data
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};
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}
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if (!isFunction(condition)) {
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var paramsCondition = isArray(condition) ? condition : condition.replace(/\s+/g, '').split('*');
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condition = function condition(row) {
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var unique = '_'; // 避免出现数字作为Key的情况，会进行按照数字的排序
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for (var i = 0, l = paramsCondition.length; i < l; i++) {
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unique += row[paramsCondition[i]] && row[paramsCondition[i]].toString();
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}
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return unique;
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};
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}
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var groups = groupBy(data, condition);
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return groups;
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};
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module.exports = groupToMap; |