[ruby-core:121727] [Ruby Feature#21284] Request: add `Array#pad` method
Issue #21284 has been reported by MatzFan (Brian Cohen). ---------------------------------------- Feature #21284: Request: add `Array#pad` method https://bugs.ruby-lang.org/issues/21284 * Author: MatzFan (Brian Cohen) * Status: Open ---------------------------------------- A method to pad an array of arbitrary length with objects up to a specified array size does not currently exist. `Array#fill` does not do this and I therefore propose the following method: ``` ruby class Array def pad(pad_to_length, object = nil) fill(object, size, pad_to_length - size) end end ``` I have provided an [answer](https://stackoverflow.com/a/79591610/4114896) to a Stack Overflow question asking how this can be done in Ruby. I've also explained in a comment on the answer which suggests using `Array#fill` why this does not meet the exact need. -- https://bugs.ruby-lang.org/
Issue #21284 has been updated by nobu (Nobuyoshi Nakada). It may be possible with `Array#fill` and start-exclusive range? ```ruby ary.fill(object, -1^..padding_length) ``` ---------------------------------------- Feature #21284: Request: add `Array#pad` method https://bugs.ruby-lang.org/issues/21284#change-112780 * Author: MatzFan (Brian Cohen) * Status: Open ---------------------------------------- A method to pad an array of arbitrary length with objects up to a specified array size does not currently exist. `Array#fill` does not do this and I therefore propose the following method: ``` ruby class Array def pad(pad_to_length, object = nil) fill(object, size, pad_to_length - size) end end ``` I have provided an [answer](https://stackoverflow.com/a/79591610/4114896) to a Stack Overflow question asking how this can be done in Ruby. I've also explained in a comment on the answer which suggests using `Array#fill` why this does not meet the exact need. -- https://bugs.ruby-lang.org/
Issue #21284 has been updated by MatzFan (Brian Cohen). When I try and run that code, e.g. ``` ruby [1, 2, 3].fill(nil, -1^..10) ``` ``` shell 'Integer#^': Range can't be coerced into Integer (TypeError) ``` In any case `pad(10)` is much prettier IMHO. ---------------------------------------- Feature #21284: Request: add `Array#pad` method https://bugs.ruby-lang.org/issues/21284#change-112781 * Author: MatzFan (Brian Cohen) * Status: Open ---------------------------------------- A method to pad an array of arbitrary length with objects up to a specified array size does not currently exist. `Array#fill` does not do this and I therefore propose the following method: ``` ruby class Array def pad(pad_to_length, object = nil) fill(object, size, pad_to_length - size) end end ``` I have provided an [answer](https://stackoverflow.com/a/79591610/4114896) to a Stack Overflow question asking how this can be done in Ruby. I've also explained in a comment on the answer which suggests using `Array#fill` why this does not meet the exact need. -- https://bugs.ruby-lang.org/
Issue #21284 has been updated by nobu (Nobuyoshi Nakada). Current Ruby doesn't have start-exclusive range. `^..` is so-called neko-operator in Perl 6, and just this request reminded me of it, sorry. ---------------------------------------- Feature #21284: Request: add `Array#pad` method https://bugs.ruby-lang.org/issues/21284#change-112798 * Author: MatzFan (Brian Cohen) * Status: Open ---------------------------------------- A method to pad an array of arbitrary length with objects up to a specified array size does not currently exist. `Array#fill` does not do this and I therefore propose the following method: ``` ruby class Array def pad(pad_to_length, object = nil) fill(object, size, pad_to_length - size) end end ``` I have provided an [answer](https://stackoverflow.com/a/79591610/4114896) to a Stack Overflow question asking how this can be done in Ruby. I've also explained in a comment on the answer which suggests using `Array#fill` why this does not meet the exact need. -- https://bugs.ruby-lang.org/
Issue #21284 has been updated by MatzFan (Brian Cohen). No worries, I thought it was some new syntax I was not aware of! ---------------------------------------- Feature #21284: Request: add `Array#pad` method https://bugs.ruby-lang.org/issues/21284#change-112799 * Author: MatzFan (Brian Cohen) * Status: Open ---------------------------------------- A method to pad an array of arbitrary length with objects up to a specified array size does not currently exist. `Array#fill` does not do this and I therefore propose the following method: ``` ruby class Array def pad(pad_to_length, object = nil) fill(object, size, pad_to_length - size) end end ``` I have provided an [answer](https://stackoverflow.com/a/79591610/4114896) to a Stack Overflow question asking how this can be done in Ruby. I've also explained in a comment on the answer which suggests using `Array#fill` why this does not meet the exact need. -- https://bugs.ruby-lang.org/
Issue #21284 has been updated by matheusrich (Matheus Richard). What should happen if the size is smaller than what currently set? ---------------------------------------- Feature #21284: Request: add `Array#pad` method https://bugs.ruby-lang.org/issues/21284#change-112841 * Author: MatzFan (Brian Cohen) * Status: Open ---------------------------------------- A method to pad an array of arbitrary length with objects up to a specified array size does not currently exist. `Array#fill` does not do this and I therefore propose the following method: ``` ruby class Array def pad(pad_to_length, object = nil) fill(object, size, pad_to_length - size) end end ``` I have provided an [answer](https://stackoverflow.com/a/79591610/4114896) to a Stack Overflow question asking how this can be done in Ruby. I've also explained in a comment on the answer which suggests using `Array#fill` why this does not meet the exact need. -- https://bugs.ruby-lang.org/
Issue #21284 has been updated by MatzFan (Brian Cohen).
What should happen if the size is smaller than what currently set?
If the `pad_to_length` argument is less than or equal to the array's current size the array is returned unchanged. If it is larger, elements of the specified kind are pushed to the array until it reaches `pad_to_length` size and the modified array returned. ---------------------------------------- Feature #21284: Request: add `Array#pad` method https://bugs.ruby-lang.org/issues/21284#change-112842 * Author: MatzFan (Brian Cohen) * Status: Open ---------------------------------------- A method to pad an array of arbitrary length with objects up to a specified array size does not currently exist. `Array#fill` does not do this and I therefore propose the following method: ``` ruby class Array def pad(pad_to_length, object = nil) fill(object, size, pad_to_length - size) end end ``` I have provided an [answer](https://stackoverflow.com/a/79591610/4114896) to a Stack Overflow question asking how this can be done in Ruby. I've also explained in a comment on the answer which suggests using `Array#fill` why this does not meet the exact need. -- https://bugs.ruby-lang.org/
participants (3)
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matheusrich (Matheus Richard) -
MatzFan (Brian Cohen)
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nobu (Nobuyoshi Nakada)