All Questions
30 questions
1vote
1answer
148views
Function, which replaces consecutive white-space with a single white-space
Task-description: Implement a function, which returns a string with all consecutive whites-spaces replaced as a single-space. Example: "a[space][space][space]b[space][space][space]c" shall ...
- 4,814
4votes
1answer
135views
Is Palindrom-function in Swift
Task is simply to write the classic isPalindrom-function. Here's my implementation: ...
- 4,814
6votes
1answer
508views
Swift-function, which checks if all letters in a string are unique
The task is writing a function, which checks if a string contains only unique characters. Means: is each character is included only one time. Here's the solution, I have developed: ...
- 4,814
2votes
2answers
328views
Swift-function, which counts all occurrences of a character within a string
I wrote this function, which (shall) count all occurrences of a specified character within a given string. ...
- 4,814
1vote
3answers
2kviews
Convert first letter of every word to uppercase
I am learning swift and I came across this problem. Converting each start letter to capitalized form if it's lowercase. ...
- 121
2votes
1answer
258views
Trie implementation for strings in Swift
A trie for handling strings for an autocomplete dictionary. This passes my fairly casual tests, though it's always possible that there are broken edge cases, but I'm mainly concerned about design and ...
- 295
3votes
1answer
115views
Determine fragment identifier from HTML page in Swift
For an iOS app which helps me rolling back vandalism on Stack Exchange, I have a piece of Swift code which downloads a revision page (example) and tries to find the 'spacer' fragment just above a ...
- 1,101
2votes
1answer
2kviews
Find indices of white space characters in a string
This function returns the indices of all white spaces as an array of Integer. It works fine with a small string: ...
- 155
3votes
1answer
192views
Splitting a long string based on its graphical presentation
I got a long string, let's call it Story. I fetch this story from a database so I don't know how long it is. I want to display this story in a view, but what if ...
- 155
1vote
2answers
205views
Converting a String to USD
I'm working on a clientside iOS app for my school that involves students purchasing things, and I wrote a String extension for formatting a ...
- 225
2votes
1answer
374views
Toggle case of a string in Swift
What is benefit of using uppercased() / lowercased() over the following approach ? (Other than making it more readable) Any ...
4votes
1answer
846views
Checking whether strings are permutations of each other in Swift
I'm solving this problem on Hacker Earth, just for practice. The exercise is to determine whether two given equal-length strings are permutations of each other. Except for this one test case, which ...
2votes
1answer
2kviews
Filtering input characters for a numeric text field using logical operators
I did my code for "Bronze Challenge: Disallow Alphabetic characters" exercise in "iOS programming" book by Big Nerd Ranch (p.85). When I did the exercise I also changed code of func textField which ...
- 21
0votes
1answer
835views
Find common directory path
I answered the problem of Find common directory path from Rosetta Code. The problem consists of passing '/home/user1/tmp/coverage/test', ...
- 145
3votes
2answers
4kviews
Comparing strings, ignoring case, punctuation, and whitespace
I have built a search function that will compare strings regardless of punctuation and whitespace. It is case insensitive. Here is my current function: ...
- 133
