TypedArray.prototype.fill()
The fill() method fills all the elements of a typed array
from a start index to an end index with a static value. This method has the same
algorithm as Array.prototype.fill(). TypedArray is one of the
typed array types here.
Try it
Syntax
fill(value)
fill(value, start)
fill(value, start, end)
Parameters
value-
Value to fill the typed array with.
startOptional-
Start index. Defaults to 0.
endOptional-
End index (not included). Defaults to
this.length.
Return value
The modified array.
Description
The elements interval to fill is [start,
end).
The fill() method takes up to three arguments
value, start and end. The start and
end arguments are optional with default values of 0
and the length of the this object.
If start is negative, it is treated as
length+start where length is the length of the array. If
end is negative, it is treated as length+end.
Examples
Using fill()
new Uint8Array([1, 2, 3]).fill(4); // Uint8Array [4, 4, 4]
new Uint8Array([1, 2, 3]).fill(4, 1); // Uint8Array [1, 4, 4]
new Uint8Array([1, 2, 3]).fill(4, 1, 2); // Uint8Array [1, 4, 3]
new Uint8Array([1, 2, 3]).fill(4, 1, 1); // Uint8Array [1, 2, 3]
new Uint8Array([1, 2, 3]).fill(4, -3, -2); // Uint8Array [4, 2, 3]
Specifications
| Specification |
|---|
| ECMAScript Language Specification # sec-%typedarray%.prototype.fill |
Browser compatibility
BCD tables only load in the browser