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1. www.w3schools.com › jsref › jsref_spliceJavaScript Array splice() Method - W3Schools

   www.w3schools.com › jsref › jsref_splice

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   The splice() method adds and/or removes array elements. The splice() method overwrites the original array.

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2. developer.mozilla.org › en-US › docsArray.prototype.splice() - JavaScript | MDN - MDN Web Docs

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   The splice() method of Array instances changes the contents of an array by removing or replacing existing elements and/or adding new elements in place.

   To create a new array with a segment removed and/or replaced without mutating the original array, use toSpliced(). To access part of an array without modifying it, see slice().

   See full list on developer.mozilla.org

   Parameters

   start Zero-based index at which to start changing the array, converted to an integer. •Negative index counts back from the end of the array — if -array.length <= start < 0, start + array.length is used. •If start < -array.length, 0 is used. •If start >= array.length, no element will be deleted, but the method will behave as an adding function, adding as many elements as provided. •If start is omitted (and splice() is called with no arguments), nothing is deleted. This is different from passing undefined, which is converted to 0.

   Return value

   An array containing the deleted elements. If only one element is removed, an array of one element is returned. If no elements are removed, an empty array is returned.

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   The splice() method is a mutating method. It may change the content of this. If the specified number of elements to insert differs from the number of elements being removed, the array's length will be changed as well. At the same time, it uses @@species to create a new array instance to be returned.

   If the deleted portion is sparse, the array returned by splice() is sparse as well, with those corresponding indices being empty slots.

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   Remove 0 (zero) elements before index 2, and insert "drum"

   Remove 0 (zero) elements before index 2, and insert "drum" and "guitar"

   Remove 0 (zero) elements at index 0, and insert "angel"

   splice(0, 0, ...elements) inserts elements at the start of the array like unshift().

   Remove 0 (zero) elements at last index, and insert "sturgeon"

   splice(array.length, 0, ...elements) inserts elements at the end of the array like push().

   Remove 1 element at index 3

   Remove 1 element at index 2, and insert "trumpet"

   Remove 2 elements from index 0, and insert "parrot", "anemone" and "blue"

   Remove 2 elements, starting from index 2

   Remove 1 element from index -2

   Remove all elements, starting from index 2

   Using splice() on sparse arrays

   The splice() method preserves the array's sparseness.

   Calling splice() on non-array objects

   The splice() method reads the length property of this. It then updates the integer-keyed properties and the length property as needed.

   See full list on developer.mozilla.org

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   •Indexed collections guide

   •Array

   •Array.prototype.concat()

   •Array.prototype.push()

   •Array.prototype.pop()

   •Array.prototype.shift()

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3. www.geeksforgeeks.org › javascript-array-splice-methodJavaScript Array splice() Method - GeeksforGeeks

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   Jun 26, 2024 · Learn how to use the splice () method to modify an array by removing, replacing or adding elements. See syntax, examples and return value of this inbuilt method.

4. www.freecodecamp.org › news › javascript-splice-howJavaScript Splice – How to Use the .splice() JS Array Method

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   Apr 23, 2021 · Learn how to use the splice() method to modify arrays in JavaScript. You can remove, add, or replace elements of an array with this method and get the returned elements as a new array.

5. www.javascripttutorial.net › javascript-array-spliceJavaScript Array splice: Delete, Insert, and Replace

   www.javascripttutorial.net › javascript-array-splice

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   Learn how to use the splice() method to manipulate arrays in JavaScript. See examples of deleting, inserting, and replacing elements in an array with the splice() method.

6. www.programiz.com › javascript › libraryJavaScript Array splice() - Programiz

   www.programiz.com › javascript › library

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   Learn how to use the splice() method to modify an array by adding, removing or replacing elements. See syntax, parameters, return value and examples of splice() in JavaScript.

7. People also ask

   What does Splice do in JavaScript?

   • splice(array.length, 0, ...elements) inserts elements at the end of the array like push(). The splice() method preserves the array's sparseness. The splice() method reads the length property of this. It then updates the integer-keyed properties and the length property as needed.

   Array.prototype.splice() - JavaScript | MDN - MDN Web Docs

   developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice

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   What is array splice in JavaScript?

   • JavaScript Array splice () Method is an inbuilt method in JavaScript that is used to change the contents of an array by removing or replacing existing elements and/or adding new elements. It modifies the original array and returns an array of the removed elements. index: It is a required parameter.

   JavaScript Array splice() Method - GeeksforGeeks

   www.geeksforgeeks.org/javascript-array-splice-method/

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   How do I splice an array?

   • The splice() method of Array instances changes the contents of an array by removing or replacing existing elements and/or adding new elements in place . To create a new array with a segment removed and/or replaced without mutating the original array, use toSpliced(). To access part of an array without modifying it, see slice().

   Array.prototype.splice() - JavaScript | MDN - MDN Web Docs

   developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice

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   What is the difference between Slice() and splice() method?

   • Unlike the slice() method, the splice() method will change the contents of the original array. The splice() method is used to add or remove elements of an existing array and the return value will be the removed items from the array. If nothing was removed from the array, then the return value will just be an empty array. Here is the basic syntax.

   How to Use the slice() and splice() JavaScript Array Methods

   www.freecodecamp.org/news/javascript-slice-and-splice-how-to-use-the-slice-and-splice-js-array-methods/

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8. www.freecodecamp.org › news › javascript-slice-andHow to Use the slice() and splice() JavaScript Array Methods

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   Apr 13, 2022 · Learn how to use the slice() and splice() array methods in JavaScript to copy, modify, or remove elements from an array. See the syntax, parameters, and code examples for each method.