Benchmark: lodash - MeasureThat.net

Script Preparation code:

var testArray =   {
    'xmlns:n': 'http://www.xmlns.walmartstores.com/DemandChain/ProductandServiceCatalogManagement/datatypes/GetProductInfo/1.0/',
    product: {
      id: 0,
      isRecalled: false,
      isOnFeature: false,
      globalTradeItem: {
        gtin: 7874211433,
        description: 'GV .5L 24PK'
      },
      item: {
        number: 553841667,
        primeItem: 553841667,
        isInCrossReferenceChain: true,
        replenishmentCarryOption: 'Opt  REPLN/CREF',
        replenishmentCarryStatus: {
          description: 'Stat:WHSE/ACTIVE'
        }
      },
      price: {
        amount: {
          value: 2.48,
          currency: {
            code: 'USD',
            description: 'US Dollar'
          }
        }
      },
      wasPrice: {
        amount: {
          value: 2.48,
          currency: {
            code: 'USD',
            description: 'US Dollar'
          }
        }
      },
      markup: {
        amount: {
          value: 0.86,
          currency: {
            code: 'USD',
            description: 'US Dollar'
          }
        }
      },
      margin: {
        amount: {
          value: 34.67742,
          currency: {
            code: 'USD',
            description: 'US Dollar'
          }
        }
      },
      accountingDepartment: {
        number: 95,
        description: {}
      },
      productLocations: {},
      quantityOnHand: {
        inventoryUnits: [
          {
            state: {
              state: 'onHandQty'
            },
            quantity: {
              amount: 140,
              uom: {}
            }
          },
          {
            state: {
              state: 'consolidatedOnHandQty'
            },
            quantity: {
              amount: 0,
              uom: {}
            }
          },
          {
            state: {
              state: 'claimsOnHandQty'
            },
            quantity: {
              amount: 1,
              uom: {}
            }
          },
          {
            state: {
              state: 'fractionalOnHandQty'
            },
            quantity: {
              amount: 0,
              uom: {}
            }
          },
          {
            state: {
              state: 'inTransitQty'
            },
            quantity: {
              amount: 0,
              uom: {}
            }
          },
          {
            state: {
              state: 'inWhseQty'
            },
            quantity: {
              amount: 0,
              uom: {}
            }
          },
          {
            state: {
              state: 'onOrderQty'
            },
            quantity: {
              amount: 0,
              uom: {}
            }
          },
          {
            state: {
              state: 'pendingSalesFloorCountQty'
            },
            quantity: {
              amount: -999,
              uom: {}
            }
          },
          {
            state: {
              state: 'backroomQty'
            },
            quantity: {
              amount: 0,
              uom: {}
            }
          },
          {
            state: {
              state: 'casePackQty'
            },
            quantity: {
              amount: 1,
              uom: {}
            }
          },
          {
            state: {
              state: 'pendingPickQty'
            },
            quantity: {
              amount: 0,
              uom: {}
            }
          },
          {
            state: {
              state: 'shelfCapacityQty'
            },
            quantity: {
              amount: 168,
              uom: {}
            }
          }
        ],
        totalQuantity: {
          amount: 0,
          uom: 'FO'
        }
      },
      productInformation: {
        color: {},
        size: '24PK',
        isVariableWeight: false,
        isHazmat: false,
        lastPOSDate: '2017-05-17T00:00:00.000Z',
        hasEASTag: false,
        Clearance: {
          isOnClearance: false
        },
        isOnRollback: false,
        isNonSellable: false,
        isOnPromotion: false,
        isWicEligible: false,
        isItemOnPI: true
      }
    },
    responseMessage: {
      code: 200,
      description: 'Operation is successful'
    }
  }

Tests:

assign
var obj2 = Object.assign({},testArray);
lodash
var obj2 = _.clone(testArray);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
assign
lodash

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark data for you.

**Benchmark Definition JSON**

The benchmark definition provides information about two test cases:

1. **`assign`**: This test case measures the performance of the built-in JavaScript `Object.assign()` method when cloning an object from another object, represented by `testArray`. The code is as simple as creating a new object and copying the contents of `testArray` into it.
2. **`lodash`**: This test case measures the performance of Lodash's `clone()` function when cloning an object from another object, also represented by `testArray`.

**Options Compared**

In both test cases:

* The input data (`testArray`) is identical.
* The only difference between the two options is which method to use for cloning: either JavaScript's built-in `Object.assign()` or Lodash's `clone()` function.

**Pros and Cons of Each Option**

1. **`Object.assign()`**: This method is part of the ECMAScript standard and has good browser support. However, it may not be as efficient as other methods when dealing with large objects, since it involves creating a new object reference for each property.
2. **Lodash's `clone()` function**: Lodash provides an optimized implementation for cloning objects that should be faster than the built-in `Object.assign()` method. However, it adds an external dependency (Lodash) and may have additional overhead due to its implementation.

**Latest Benchmark Results**

The latest results show the performance of both options:

1. **`assign`**: Chrome 115 on a Desktop with Mac OS X 10.15.7 has an average execution rate of approximately 6837858.5 executions per second.
2. **`lodash`**: The same browser and device platform has an average execution rate of approximately 3489480.25 executions per second.

**Conclusion**

The results suggest that Lodash's `clone()` function is significantly faster than the built-in JavaScript `Object.assign()` method, likely due to its optimized implementation. If performance is a top priority, using Lodash's `clone()` function might be a better choice, but it does come with an added dependency and potential overhead.

It's also worth noting that the difference in execution rates between the two options may not be significant for small to medium-sized objects, where other factors like memory allocation or caching might have more impact. However, for larger objects or performance-critical applications, using a optimized library like Lodash can make a noticeable difference.

Related benchmarks:

lodash (version: 0)

Comparing performance of: assign vs lodash

Created: 8 years ago by: Guest

Jump to the latest result

assign

lodash

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):