jQuery.merge( first, second )Returns: Array
Description: Merge the contents of two arrays together into the first array.
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version added: 1.0jQuery.merge( first, second )
- firstType: ArrayLikeObjectThe first array-like object to merge, the elements of second added.
- secondType: ArrayLikeObjectThe second array-like object to merge into the first, unaltered.
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The $.merge() operation forms an array that contains all elements from the two arrays. The orders of items in the arrays are preserved, with items from the second array appended. The $.merge() function is destructive. It alters the length and numeric index properties of the first object to include items from the second.
If you need the original first array, make a copy of it before calling $.merge(). Fortunately, $.merge() itself can be used for this duplication:
var newArray = $.merge([], oldArray);
This shortcut creates a new, empty array and merges the contents of oldArray into it, effectively cloning the array.
Prior to jQuery 1.4, the arguments should be true Javascript Array objects; use $.makeArray if they are not.
Examples:
Merges two arrays, altering the first argument.
$.merge( [ 0, 1, 2 ], [ 2, 3, 4 ] )
Result:
[ 0, 1, 2, 2, 3, 4 ]
Merges two arrays, altering the first argument.
$.merge( [ 3, 2, 1 ], [ 4, 3, 2 ] )
Result:
[ 3, 2, 1, 4, 3, 2 ]
Merges two arrays, but uses a copy, so the original isn't altered.
var first = [ "a", "b", "c" ]; var second = [ "d", "e", "f" ]; $.merge( $.merge( [], first ), second );
Result:
[ "a", "b", "c", "d", "e", "f" ]