8.5 Data Structures – lrepeat

[136] lrepeat

Create a list of 1000 x’s

lrepeat 1000 x

Without ?

unset s; for {set i 0} {$i < 1000} {incr i} {lappend s {x}}

set s [split [string repeat x 1000] ""]

set s x[string repeat " x" 999]

Various penalties, memory and performance.