We can use a string to write a long sentence or even a passage using the back-ticks. array.length returns ,n, the number of elements in the array and when we fetch elements from the array using index it is from 0 to n-1. I used the console command inside the loop to show this: console.log (word.length, word, shortestWord, shortestWord.length) Here is the output: That is what programming is. This is an interesting problem I faced before while learning. Splitting the string will duplicate it, doubling the memory usage. var x = word[0].length; for(i=0; i= 0; i--) {, if there 4 elements in array index start from 0 to 3 hence in that case array[4] is undefined. Taken from MDN, Array length returns a 32-bit integer that is However, if you were to have an intermediate result called words, it would be quite clear what that stands for. acknowledge that you have read and understood our. What does "use strict" do in JavaScript, and what is the reasoning behind it? For this solution, we will use the String.prototype.split() method. In short, array.length is zero-based index. My code looks like this: Then, we will make another array, made from the lengths of each element of the str.split(" ") array with map(). the characters i mean, I would have to count every word and compare, Now we are getting somewhere So you need to begin to translate count every word and compare into JS. Note: Dont worry the code is followed by an explanation for better understanding of it. Use MathJax to format equations. The name of the function is getLongestWord. function findLongestWord(str) { Know other solutions? Write a function called longest which will take a string of space-separated words and will return the longest one. Also, replaced and final aren't exactly helpful variable names. Finding the Longest Word in a String with a regex JavaScript zyker.tompos July 5, 2022, 8:21pm 1 I was attempting to find the longest possible word inside a string. Write a function that returns the length of the longest word in a sentence. Return the length of the longest word in the provided sentence. Next you did the following: for (let i = 0; i < word.length; i++) { } How can I change elements in a matrix to a combination of other elements? Why is the expansion ratio of the nozzle of the 2nd stage larger than the expansion ratio of the nozzle of the 1st stage of a rocket? Write a JavaScript function that accepts a string as a parameter and finds the longest word within the string. But I didnt ask you to explain it in javascript, I asked you to explain it in English. The issue with the code you write, you are declaring the max variable inside the for loop, which means it will be reinitialized to an empty string on each iteration. I'm not sure if splitters are that efficient, though. is there a limit of speed cops can go on a high speed pursuit? Thanks everybody for the great suggestions! First of all. If n = number of characters, then you are still within O(n) space complexity - e.g. Explain Promise.any() with async-await in JavaScript. Algebraically why must a single square root be done on all terms rather than individually? And now we want to call the length property of each word while collecting the value into an array. OverflowAI: Where Community & AI Come Together, Behind the scenes with the folks building OverflowAI (Ep. You will need to loop through the words in the string. What is Mathematica's equivalent to Maple's collect with distributed option? The JS Math Max link in the intermediate function explanations returns-, {errors:[The requested URL or resource could not be found.],error_type:not_found}. {"payload":{"allShortcutsEnabled":false,"fileTree":{"javascript/FreeCodeCamps/Basic Algorithm Scripting":{"items":[{"name":"Caesars Cipher.md","path":"javascript . It has many separator options, and here we used the ' ', which stands for empty space, meaning that the words will be separated by empty spaces. Do the 2.5th and 97.5th percentile of the theoretical sampling distribution of a statistic always contain the true population parameter? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. See Also: Were all of the "good" terminators played by Arnold Schwarzenegger completely separate machines? 3 Answers Sorted by: 2 As already mentioned you are looping too far and you need to move the max outside the loop. Are modern compilers passing parameters in registers instead of on the stack? However, we can't just call this on the entire string because it will just return the length of the entire sentence. It only takes a minute to sign up. Write a JavaScript function that accepts a string as a parameter and converts the first letter of each word of the string in upper case. Your response should be a number. @le_m Nah, leave it - it's a valid solution and a good comment, This returns the length of the longest word, not the word itself, as the tests expect. Translating stuff from your brain into code. Follow us on Facebook First ,when i use split(), I found str1 is a list, so , I just think why not get a list which contain every words length. Declare a variable to keep track of the maximum length and loop from 0 to the length of the array of words. Find centralized, trusted content and collaborate around the technologies you use most. We can use a string to write a long sentence or even a passage using the back-ticks. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. OverflowAI: Where Community & AI Come Together, Return length of longest word in string (Javascript), Behind the scenes with the folks building OverflowAI (Ep. str.split(" ") splits the string into an array, taking spaces as separators. Creative Commons-Attribution-ShareAlike 4.0 (CC-BY-SA 4.0). OverflowAI: Where Community & AI Come Together, Function to find longest word in a string, https://jsperf.com/longest-word-in-string-4, Behind the scenes with the folks building OverflowAI (Ep. javascript-function-exercise-6-1 by w3resource (@w3resource) Asking for help, clarification, or responding to other answers. Loop (for each) over an array in JavaScript. For example, converting a string to an array in order to access the map method. You might want to experiment with increasing the step-size by the length of the currently found longest word and looking back for the next space in order to find a longer word than currently found. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Contribute your expertise and make a difference in the GeeksforGeeks portal. How to split multiline string into an array of lines in JavaScript ? So you would just randomly look at words in the sentence and hope you found the longest one? Is it possible to use reduce with strings in JavaScript? Copyright 2023 Educative, Inc. All rights reserved. send a video file once and multiple users stream it? JavaScript Algorithms and Data Structures; Basic Algorithm Scripting; Find the Longest Word in a String. Since length counts code units instead of characters, if you want to get the number of characters, you can first split the string with its iterator , which iterates by . }, Powered by Discourse, best viewed with JavaScript enabled, freeCodeCamp Challenge Guide: Find the Longest Word in a String. 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