Mixing
Replacing a word in a string with user input [RUBY]
I'm trying to figure out how to replace a word in a string with a user string.
The user would be prompted to type which word they would like to replace, and then they would be again prompted to enter the new word.
For example the starting string would be "Hello, World."
User would input "World"
then they would input "Ruby"
Finally, "Hello, Ruby." would print out.
So far Ive tried using gsub and the method neither worked. Any thoughts?
Here's my function so far:
def subString(string)
sentence = string
print"=========================n"
print sentence
print "n"
print "Enter the word you want to replace: "
replaceWord = gets
print "Enter what you want the new word to be: "
newWord = gets
sentence[replaceWord] = [newWord]
print sentence
#newString = sentence.gsub(replaceWord, newWord)
#newString = sentence.gsub("World", "Ruby")
#print newString
end
arrays ruby string replace user-input
asked Nov 19 '18 at 21:54
AndrewAndrew
113
add a comment |
I'm trying to figure out how to replace a word in a string with a user string.
The user would be prompted to type which word they would like to replace, and then they would be again prompted to enter the new word.
For example the starting string would be "Hello, World."
User would input "World"
then they would input "Ruby"
Finally, "Hello, Ruby." would print out.
So far Ive tried using gsub and the method neither worked. Any thoughts?
Here's my function so far:
def subString(string)
sentence = string
print"=========================n"
print sentence
print "n"
print "Enter the word you want to replace: "
replaceWord = gets
print "Enter what you want the new word to be: "
newWord = gets
sentence[replaceWord] = [newWord]
print sentence
#newString = sentence.gsub(replaceWord, newWord)
#newString = sentence.gsub("World", "Ruby")
#print newString
end
arrays ruby string replace user-input
asked Nov 19 '18 at 21:54
AndrewAndrew
113
add a comment |
I'm trying to figure out how to replace a word in a string with a user string.
The user would be prompted to type which word they would like to replace, and then they would be again prompted to enter the new word.
For example the starting string would be "Hello, World."
User would input "World"
then they would input "Ruby"
Finally, "Hello, Ruby." would print out.
So far Ive tried using gsub and the method neither worked. Any thoughts?
Here's my function so far:
def subString(string)
sentence = string
print"=========================n"
print sentence
print "n"
print "Enter the word you want to replace: "
replaceWord = gets
print "Enter what you want the new word to be: "
newWord = gets
sentence[replaceWord] = [newWord]
print sentence
#newString = sentence.gsub(replaceWord, newWord)
#newString = sentence.gsub("World", "Ruby")
#print newString
end
arrays ruby string replace user-input
asked Nov 19 '18 at 21:54
AndrewAndrew
113
I'm trying to figure out how to replace a word in a string with a user string.
The user would be prompted to type which word they would like to replace, and then they would be again prompted to enter the new word.
For example the starting string would be "Hello, World."
User would input "World"
then they would input "Ruby"
Finally, "Hello, Ruby." would print out.
So far Ive tried using gsub and the method neither worked. Any thoughts?
Here's my function so far:
def subString(string)
sentence = string
print"=========================n"
print sentence
print "n"
print "Enter the word you want to replace: "
replaceWord = gets
print "Enter what you want the new word to be: "
newWord = gets
sentence[replaceWord] = [newWord]
print sentence
#newString = sentence.gsub(replaceWord, newWord)
#newString = sentence.gsub("World", "Ruby")
#print newString
end
arrays ruby string replace user-input
arrays ruby string replace user-input
asked Nov 19 '18 at 21:54
AndrewAndrew
113
asked Nov 19 '18 at 21:54
AndrewAndrew
113
edited Nov 19 '18 at 22:01
Andrew
asked Nov 19 '18 at 21:54
AndrewAndrew
113
asked Nov 19 '18 at 21:54
AndrewAndrew
113
asked Nov 19 '18 at 21:54
AndrewAndrew
113
113
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
The problem is gets also grabs the new line when a user inputs, so you want to strip that off. I made this silly test case in the console
sentence = "hello world"
replace_with = gets # put in hello
replace_with.strip!
sentence.gsub!(replace_with, 'butt')
puts sentence # prints 'butt world'
answered Nov 19 '18 at 22:16
Nick EllisNick Ellis
689518
Thanks! This worked perfectly
– Andrew
Nov 19 '18 at 22:20
add a comment |
When you enter "World", you are actually pressing 6 keys: World and enter (modifier keys like shift are not recognized as separate characters). The gets method therefore returns "Worldn" with n begin newline.
To remove such newlines, there's chomp:
"Worldn".chomp
#=> "World"
Applied to your code: (along with some minor fixes)
sentence = "Hello, World."
puts "========================="
puts sentence
print "Enter the word you want to replace: "
replace_word = gets.chomp
print "Enter what you want the new word to be: "
new_word = gets.chomp
sentence[replace_word] = new_word
puts sentence
Running the code gives:
=========================
Hello, World.
Enter the word you want to replace: World
Enter what you want the new word to be: Ruby
Hello, Ruby.
answered Nov 20 '18 at 9:27
StefanStefan
75.3k894142
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
The problem is gets also grabs the new line when a user inputs, so you want to strip that off. I made this silly test case in the console
sentence = "hello world"
replace_with = gets # put in hello
replace_with.strip!
sentence.gsub!(replace_with, 'butt')
puts sentence # prints 'butt world'
answered Nov 19 '18 at 22:16
Nick EllisNick Ellis
689518
Thanks! This worked perfectly
– Andrew
Nov 19 '18 at 22:20
add a comment |
The problem is gets also grabs the new line when a user inputs, so you want to strip that off. I made this silly test case in the console
sentence = "hello world"
replace_with = gets # put in hello
replace_with.strip!
sentence.gsub!(replace_with, 'butt')
puts sentence # prints 'butt world'
answered Nov 19 '18 at 22:16
Nick EllisNick Ellis
689518
Thanks! This worked perfectly
– Andrew
Nov 19 '18 at 22:20
add a comment |
The problem is gets also grabs the new line when a user inputs, so you want to strip that off. I made this silly test case in the console
sentence = "hello world"
replace_with = gets # put in hello
replace_with.strip!
sentence.gsub!(replace_with, 'butt')
puts sentence # prints 'butt world'
answered Nov 19 '18 at 22:16
Nick EllisNick Ellis
689518
The problem is gets also grabs the new line when a user inputs, so you want to strip that off. I made this silly test case in the console
sentence = "hello world"
replace_with = gets # put in hello
replace_with.strip!
sentence.gsub!(replace_with, 'butt')
puts sentence # prints 'butt world'
answered Nov 19 '18 at 22:16
Nick EllisNick Ellis
689518
answered Nov 19 '18 at 22:16
Nick EllisNick Ellis
689518
answered Nov 19 '18 at 22:16
Nick EllisNick Ellis
689518
answered Nov 19 '18 at 22:16
Nick EllisNick Ellis
689518
689518
Thanks! This worked perfectly
– Andrew
Nov 19 '18 at 22:20
add a comment |
Thanks! This worked perfectly
– Andrew
Nov 19 '18 at 22:20
Thanks! This worked perfectly
– Andrew
Nov 19 '18 at 22:20
Thanks! This worked perfectly
– Andrew
Nov 19 '18 at 22:20
add a comment |
When you enter "World", you are actually pressing 6 keys: World and enter (modifier keys like shift are not recognized as separate characters). The gets method therefore returns "Worldn" with n begin newline.
To remove such newlines, there's chomp:
"Worldn".chomp
#=> "World"
Applied to your code: (along with some minor fixes)
sentence = "Hello, World."
puts "========================="
puts sentence
print "Enter the word you want to replace: "
replace_word = gets.chomp
print "Enter what you want the new word to be: "
new_word = gets.chomp
sentence[replace_word] = new_word
puts sentence
Running the code gives:
=========================
Hello, World.
Enter the word you want to replace: World
Enter what you want the new word to be: Ruby
Hello, Ruby.
answered Nov 20 '18 at 9:27
StefanStefan
75.3k894142
add a comment |
When you enter "World", you are actually pressing 6 keys: World and enter (modifier keys like shift are not recognized as separate characters). The gets method therefore returns "Worldn" with n begin newline.
To remove such newlines, there's chomp:
"Worldn".chomp
#=> "World"
Applied to your code: (along with some minor fixes)
sentence = "Hello, World."
puts "========================="
puts sentence
print "Enter the word you want to replace: "
replace_word = gets.chomp
print "Enter what you want the new word to be: "
new_word = gets.chomp
sentence[replace_word] = new_word
puts sentence
Running the code gives:
=========================
Hello, World.
Enter the word you want to replace: World
Enter what you want the new word to be: Ruby
Hello, Ruby.
answered Nov 20 '18 at 9:27
StefanStefan
75.3k894142
add a comment |
When you enter "World", you are actually pressing 6 keys: World and enter (modifier keys like shift are not recognized as separate characters). The gets method therefore returns "Worldn" with n begin newline.
To remove such newlines, there's chomp:
"Worldn".chomp
#=> "World"
Applied to your code: (along with some minor fixes)
sentence = "Hello, World."
puts "========================="
puts sentence
print "Enter the word you want to replace: "
replace_word = gets.chomp
print "Enter what you want the new word to be: "
new_word = gets.chomp
sentence[replace_word] = new_word
puts sentence
Running the code gives:
=========================
Hello, World.
Enter the word you want to replace: World
Enter what you want the new word to be: Ruby
Hello, Ruby.
answered Nov 20 '18 at 9:27
StefanStefan
75.3k894142
When you enter "World", you are actually pressing 6 keys: World and enter (modifier keys like shift are not recognized as separate characters). The gets method therefore returns "Worldn" with n begin newline.
To remove such newlines, there's chomp:
"Worldn".chomp
#=> "World"
Applied to your code: (along with some minor fixes)
sentence = "Hello, World."
puts "========================="
puts sentence
print "Enter the word you want to replace: "
replace_word = gets.chomp
print "Enter what you want the new word to be: "
new_word = gets.chomp
sentence[replace_word] = new_word
puts sentence
Running the code gives:
=========================
Hello, World.
Enter the word you want to replace: World
Enter what you want the new word to be: Ruby
Hello, Ruby.
answered Nov 20 '18 at 9:27
StefanStefan
75.3k894142
answered Nov 20 '18 at 9:27
StefanStefan
75.3k894142
answered Nov 20 '18 at 9:27
StefanStefan
75.3k894142
answered Nov 20 '18 at 9:27
StefanStefan
75.3k894142
75.3k894142
add a comment |
add a comment |
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