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The difference between splice and slice in js

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Release: 2024-05-06 10:39:13
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Splice in JavaScript is used to remove or replace elements from an array and insert new elements, while slice is used to create a new array containing a specified range of elements.

The difference between splice and slice in js

##The difference between splice and slice in JavaScript

In JavaScript,

splice and slice are both methods for processing arrays, but they have different functions and usages.

splice

splice method is used to remove or replace elements from an array and optionally insert new ones element. Its syntax is:

<code>array.splice(start, deleteCount, ...items)</code>
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Where:

  • start: The index to start deleting (starting from 0).
  • deleteCount: The number of elements to be deleted.
  • ...items: Optional new elements that will be inserted after the deleted elements.

splice method modifies the original array and returns a new array containing the deleted elements.

slice

slice method is used to create a new array from an array, containing the specified range in the original array Elements. Its syntax is:

<code>array.slice(start, end)</code>
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Where:

  • start: The index to start including (starting from 0).
  • end: To end the included index (but not include the index).

slice method does not modify the original array and returns a new array containing the copied elements.

Summary

  • splice is used to delete or replace elements from an array, and can insert new elements after deletion.
  • slice Used to create a new array containing a specified range of elements from an array.

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