Using JavaScript to sort object arrays by different fields

Source: Internet
Author: User
Tags array sort

Using JavaScript to sort object arrays by different fields
Suppose there is an object array, we want to sort the array according to an object attribute, and the comparison function passed to the array sort () method needs to receive two parameters, that is, the value to be compared. However, we need a way to specify which attribute to sort. To solve this problem, define a function that receives an attribute name and creates a comparison function based on the attribute name. The following is the definition of this function.

Function createComparionFun (propertyName) {return function (object1, object2) {var value1 = object1 [propertyName]; var value2 = object2 [propertyName]; if (value1

 
  
Value2) {return 1 ;}else {return 0 ;}}}

 


The above function can be used as in the following example.

 

Var data = [{name: zom, age: 18}, {name: nbd, age: 20}]; data. sort (creatComparionFun (name); alert (data [0]. name); // nbddata. sort (creatComparionFun (age); alert (data [0]. name); // zom
In this way, sort by different attributes.

 

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