Aggregate Table - list of towns in JavaScript. Sentiments in Text - Word Based Encodings. We split the input … Examples. the Output: 2 We loop through the string and hash the characters using ASCII codes. I have tried to do most of the coding from scratch for better understanding. I was trying to write a regular expressions to find repeated words in a sentence. Duplicate words add redundancy to the sentence and can alter the meaning of the sentence. def first_repeated_word( str1): temp = set() for word in str1. Note that letter case does not matter – it is case-insensitive. Value . 30, Nov 17. Another word for repeated. Word will be used as the key and occurrence will be used as value. How? Find the first repeated word in a string in Python using Dictionary. Previous: Write a JavaScript function to get all possible subset with a fixed length (for example 2) combinations in an array. If not true, then it does repeat. 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The repeat() method returns a new string with a specified number of copies of the string it was called on. A very common programming interview question is that given a string you need to find out the duplicate characters in the string. So I coded it myself here. We can solve this problem quickly in python using Dictionary data structure. Now convert list of words into dictionary using collections.Counter(iterator) method. Using the split function, this string is broken into individual words. function firstNonRepeatedCharacter(string) { var first; string.split ('').some (function (character, index, obj) { if(obj.indexOf (character) === obj.lastIndexOf (character)) { first = character; return true; } return false; }); return first; } console.log (firstNonRepeatedCharacter ('aabcbd')); On jsFiddle. The first one has 2 repeated characters but the second one has 3. Words in a sentence are separated by a space. 30, Jun 17. The string is: Spring is beautiful but so is winter The word is occurs 2 times in the above string. To find the duplicate words from the string, we first split the string into words. Input: str = “Ram went went to to to his home” First, we have entered a string and then using split() string method. howOutput: add ( word) return 'None' print( first_repeated_word ("ab ca bc ab")) print( first_repeated_word ("ab ca bc ab ca ab bc")) print( first_repeated_word ("ab ca bc ca ab bc")) print( first_repeated_word ("ab ca bc")) Sample Output: ab ab ca None. First, as above in the sort example we use split again to get our string into an array of words. Also, store the position of the letter first found in. repeated example sentences. We count the occurrence of each word in the string. Viewed 6k times 15. 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