Grouping elements in array by multiple properties is the closest match to my question as it indeed groups objects by multiple keys in an array. Problem is this solution doesn’t sum up the properties value then remove the duplicates, it instead nests all the duplicates in a two-dimensional arrays. Expected behavior I have an array of objects which must be
Tag: duplicates
Remove duplicates of array from another array, JavaScript
How can i remove duplicated arrays in this data structure? [![enter image description here][1]][1] I got this: with: I need to reduce data, remove duplicated arrays and provide result to sankey graf. jsonData elements contain much more data and structure of each left, center and right side is a little bit diffrent. [1]: http://i.stack.imgur.com/1MvXz.png Answer You could filter them:
Fastest way to duplicate an array in JavaScript – slice vs. ‘for’ loop
In order to duplicate an array in JavaScript: Which of the following is faster to use? Slice method For loop I know both ways do only a shallow copy: if original_array contains references to objects, objects won’t be cloned, but only the references will be copied, and therefore both arrays will have references to the same objects. But this is