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instansmetoder
|
|
chr
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int.chr -> aString
|
|
Returns a string containing the ASCII character represented by
the receiver's value.
65.chr
|
» |
"A"
|
?a.chr
|
» |
"a"
|
230.chr
|
» |
"\346"
|
|
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downto
|
int.downto( anInteger ) {| i | block }
-> int
|
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Iterates block, passing decreasing values
from int down to and including anInteger.
5.downto(1) { |n| print n, ".. " }
print " Liftoff!\n"
|
produces:
5.. 4.. 3.. 2.. 1.. Liftoff!
|
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integer?
|
int.integer? -> true
|
|
Always returns true.
|
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next
|
int.next -> anInteger
|
|
Returns the Integer equal to int + 1.
|
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step
|
int.step( endNum, step ) {| i | block }
-> int
|
|
Invokes block with the sequence of numbers starting at
int,
incremented by step on each call. The loop
finishes when the value to be passed to the block is greater
than endNum (if step is positive) or less than
endNum (if step is negative).
1.step(10, 2) { |i| print i, " " }
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produces:
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succ
|
int.succ -> anInteger
|
|
Synonym for
Integer#next
.
|
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times
|
int.times {| i | block }
-> int
|
|
Iterates block int times, passing in values from zero to
int - 1.
5.times do |i|
print i, " "
end
print "\n"
|
produces:
|
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upto
|
int.upto( anInteger ) {| i | block }
-> int
|
|
Iterates block, passing in integer values from
int up to and including anInteger.
5.upto(10) { |i| print i, " " }
|
produces:
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