使用underscore.js選取多個屬性

Question

var arr = [{Analytics:26}, {Technology:22}, {Medical:40}, {Operations:90}] 

輸出必須按順序排列。從操作，醫療，分析開始&技術。

輸出：

[90,40,26,22] 

Answer 1

您可以用

var merged = Object.assign({}, ...arr); 

合併的對象然後挑選出那些你想要的：

var output = [merged.Operations, merged.Medical, merged.Analytics, merged.Technology]; 

如果你喜歡純下劃線：

var merged = _.extend({}, ...arr); 
_.map(['Operations', 'Medical', 'Analytics', 'Technology'], prop => merged[prop]);