Examples Return a portion of an existing arrayĬopy Code var unboundSlice = If a new element is added to either array, the other array is not affected.
Changes to the string, number or boolean in one array does not affect the other array. For strings, numbers and booleans (not String, Number and Boolean objects), slice copies the values into the new array.If a referenced object changes, the changes are visible to both the new and original arrays. Both the original and new array refer to the same object. For object references (and not the actual object), slice copies object references into the new array.Elements of the original array are copied into the returned array as follows: It returns a shallow copy of elements from the original array. Return valueĪ new array containing the extracted elements. If end is omitted, slice extracts through the end of the sequence ( arr.length). slice(2,-1) extracts the third element through the second-to-last element in the sequence. As a negative index, end indicates an offset from the end of the sequence.
slice(1,4) extracts the second element through the fourth element (elements indexed 1, 2, and 3). slice extracts up to but not including end. end Zero-based index at which to end extraction. If begin is undefined, slice begins from index 0. slice(-2) extracts the last two elements in the sequence. As a negative index, begin indicates an offset from the end of the sequence. slice(]) Parameters begin Zero-based index at which to begin extraction.
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