Module: darkFns/array

Methods

(static) ariSeries(startopt, end, step)

generating the sequence of equal difference
Parameters:
Name Type Attributes Default Description
start number <optional>
 0 the start element
end number the index of end but exclude and also is the length of array
step number the difference
Source:
Example
ariSeries(5) // [0, 1, 2, 3, 4]
ariSeries(1, 3) // [1, 2, 3]
ariSeries(1, 3, 2) // [1, 3, 5]

(static) deepDefAssign()

defAssign deeply, refer to defAssign
Source:

(static) defAssign(target, source)

mixin two array and ignore undefined
Parameters:
Name Type Description
target Array
source Array
Source:
Example
defAssign([], [1, 2]) // [1, 2]
defAssign([undefined, 3], [1, undefined]]) // [1, 3]

(static) fill(arr, value, start, end)

fill array by value, refer to Array.prototype.fill
Parameters:
Name Type Description
arr array
value * if value is function, it will fill by the result of value.call(arr, start, arr)
start number the index of start
end number the index of end
Source:

(static) range(startopt, end, stepopt)

like the function `range` of [python](https://docs.python.org/3/library/stdtypes.html?highlight=range#range) generating an array in the range `[start, end)` with the equal difference `step`
Parameters:
Name Type Attributes Default Description
start number <optional>
 0
end number
step number <optional>
 1
Source:
Example
range(5) // [0, 1, 2]
range(1, 5) // [1, 2, 3, 4, 5]
range(1, 9, 3) // [1, 4, 7]

(static) series(startopt, end, cb)

new a array using function
Parameters:
Name Type Attributes Default Description
start number <optional>
 0 the start element
end number the index of end but exclude and also is the length of array
cb function the callback with arguments `(idx, array, accumulator)` idx is the index of each element array is the array accumulator is the sum of the previous elements the number of parameters is indefinite: series(start, end, function) series(end, function)
Source:
Example
series(5, idx => idx) // [0, 1, 2, 3, 4]