Revisions to How to append something to an array?

Active reading [<https://www.youtube.com/watch?v=1Dax90QyXgI&t=17m54s>].

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edited Aug 14, 2021 at 15:39

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Append Single Elementa single element

// Append to the end
arrName.push('newName1');

// Prepend to the start
arrName.unshift('newName1');

// Insert at index 1
arrName.splice(1, 0,'newName1');
// 1: index number, 0: number of element to remove, newName1: new element


// Replace index 3 (of exists), add new element otherwise.
arrName[3] = 'newName1';

Append Multiple Elementsmultiple elements

// Insert from index number 1
arrName.splice(1, 0,'newElemenet1', 'newElemenet2', 'newElemenet3');
// 1: index number from where insert starts, 
// 0: number of element to remove, 
//newElemenet1,2,3: new elements

Append an array

//join Join two or more arrays
arrName.concat(newAry1, newAry2);
//newAry1,newAry2: Two different arrays which are to be combined (concatenated) to an existing array

Append Single Element

//Append to the end
arrName.push('newName1');

//Prepend to the start
arrName.unshift('newName1');

//Insert at index 1
arrName.splice(1, 0,'newName1');
//1: index number, 0: number of element to remove, newName1: new element


// Replace index 3 (of exists), add new element otherwise.
arrName[3] = 'newName1';

Append Multiple Elements

//Insert from index number 1
arrName.splice(1, 0,'newElemenet1', 'newElemenet2', 'newElemenet3');
//1: index number from where insert starts, 
//0: number of element to remove, 
//newElemenet1,2,3: new elements

Append array

//join two or more arrays
arrName.concat(newAry1, newAry2);
//newAry1,newAry2: Two different arrays which are to be combined (concatenated) to an existing array

Append a single element

// Append to the end
arrName.push('newName1');

// Prepend to the start
arrName.unshift('newName1');

// Insert at index 1
arrName.splice(1, 0,'newName1');
// 1: index number, 0: number of element to remove, newName1: new element


// Replace index 3 (of exists), add new element otherwise.
arrName[3] = 'newName1';

Append multiple elements

// Insert from index number 1
arrName.splice(1, 0,'newElemenet1', 'newElemenet2', 'newElemenet3');
// 1: index number from where insert starts,
// 0: number of element to remove,
//newElemenet1,2,3: new elements

Append an array

// Join two or more arrays
arrName.concat(newAry1, newAry2);
//newAry1,newAry2: Two different arrays which are to be combined (concatenated) to an existing array

Grammar, fix errors in definitions. Push adds to end, not beginning. Unshify adds to beginning, not end. The word"append" was mostly being used incorrectly. literally it means"add to the end". Fixed with correct terminology.

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edited Feb 20, 2019 at 19:49

SherylHohman

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Append Single Element

//Append atto firstthe end
arrName.push('newName1');

//AppendPrepend atto lastthe start
arrName.unshift('newName1');

//AppendInsert at index 1
arrName.splice(1, 0,'newName1');
//1: index number, 0: number of element to remove, newName1: new element


//Append atReplace index 3 (of exists), add new element otherwise.
arrName[3] = 'newName1';

Append Multiple ElementElements

//AppendInsert from index number 1
arrName.splice(1, 0,'newElemenet1', 'newElemenet2', 'newElemenet3');
//1: index number from where appendinsert startstarts, 
//0: number of element to remove, 
//newElemenet1,2,3: new elements

Append array

//join two or more arrayarrays
arrName.concat(newAry1, newAry2);
//newAry1,newAry2: Two different arrayarrays which isare to be appendcombined (concatenated) to thean existing array

Append Single Element

//Append at first
arrName.push('newName1');

//Append at last
arrName.unshift('newName1');

//Append at index 1
arrName.splice(1, 0,'newName1');
//1: index number, 0: number of element to remove, newName1: new element


//Append at index 3
arrName[3] = 'newName1';

Append Multiple Element

//Append from index number 1
arrName.splice(1, 0,'newElemenet1', 'newElemenet2', 'newElemenet3');
//1: index number from where append start, 
//0: number of element to remove, 
//newElemenet1,2,3: new elements

Append array

//join two or more array
arrName.concat(newAry1, newAry2);
//newAry1,newAry2: Two different array which is to be append to the existing array

Append Single Element

//Append to the end
arrName.push('newName1');

//Prepend to the start
arrName.unshift('newName1');

//Insert at index 1
arrName.splice(1, 0,'newName1');
//1: index number, 0: number of element to remove, newName1: new element


// Replace index 3 (of exists), add new element otherwise.
arrName[3] = 'newName1';

Append Multiple Elements

//Insert from index number 1
arrName.splice(1, 0,'newElemenet1', 'newElemenet2', 'newElemenet3');
//1: index number from where insert starts, 
//0: number of element to remove, 
//newElemenet1,2,3: new elements

Append array

//join two or more arrays
arrName.concat(newAry1, newAry2);
//newAry1,newAry2: Two different arrays which are to be combined (concatenated) to an existing array

missing ''

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edited Aug 12, 2018 at 17:20

Srikrushna

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2
46
52

Append Single Element

//Append at first
arrName.push('newName1');

//Append at last
arrName.unshift('newName1');

//Append at index 1
arrName.splice(1, 0,'newName1');
//1: index number, 0: number of element to remove, newName1: new element


//Append at index 3
arrName[3] = 'newName1';

Append Multiple Element

//Append from index number 1
arrName.splice(1, 0,'newElemenet1'newElemenet1', newElemenet2'newElemenet2', newElemenet3''newElemenet3');
//1: index number from where append start, 
//0: number of element to remove, 
//newElemenet1,2,3: new elements

Append array

//join two or more array
arrName.concat(newAry1, newAry2);
//newAry1,newAry2: Two different array which is to be append to the existing array

Append Single Element

//Append at first
arrName.push('newName1');

//Append at last
arrName.unshift('newName1');

//Append at index 1
arrName.splice(1, 0,'newName1');
//1: index number, 0: number of element to remove, newName1: new element


//Append at index 3
arrName[3] = 'newName1';

Append Multiple Element

//Append from index number 1
arrName.splice(1, 0,'newElemenet1, newElemenet2, newElemenet3');
//1: index number from where append start, 
//0: number of element to remove, 
//newElemenet1,2,3: new elements

Append array

//join two or more array
arrName.concat(newAry1, newAry2);
//newAry1,newAry2: Two different array which is to be append to the existing array

Append Single Element

//Append at first
arrName.push('newName1');

//Append at last
arrName.unshift('newName1');

//Append at index 1
arrName.splice(1, 0,'newName1');
//1: index number, 0: number of element to remove, newName1: new element


//Append at index 3
arrName[3] = 'newName1';

Append Multiple Element

//Append from index number 1
arrName.splice(1, 0,'newElemenet1', 'newElemenet2', 'newElemenet3');
//1: index number from where append start, 
//0: number of element to remove, 
//newElemenet1,2,3: new elements

Append array

//join two or more array
arrName.concat(newAry1, newAry2);
//newAry1,newAry2: Two different array which is to be append to the existing array

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answered Jun 28, 2018 at 19:01

Srikrushna

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2
46
52

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Post Made Community Wiki by Srikrushna

occurred Jun 28, 2018 at 19:01

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