Function: list.prepend
Creates a copy of a list with a new element added to the beginning.
Arguments
| Arguments | |
|---|---|
objs |
The source list. Note that this list is not modified. |
val |
The element that will be prepended to the beginning. |
Returns
A copy ofobjs withval added to the beginning.
Raised exceptions
| Exceptions | |
|---|---|
TypeError | Ifobjs is not a list. |
Examples
# Prepend `val` to start of copy of `my_list`# Returns `["three","zero","one","two"]`-init:assign:-my_list:["zero","one","two"]-val:"three"-returnStep:return:${list.prepend(my_list, val)}
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Last updated 2026-02-19 UTC.