Let's use JavaScript to find the longest word in a string. Get length of word array using reduce and substring method. Yay! 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. Thanks ahead. Sample Solution-1: JavaScript Code: function find_longest_word(str) { var array1 = str.match(/\w [a-z] {0,}/gi); var result = array1 [0]; for(var x = 1 ; x < array1.length ; x ++) { if( result.length < array1 [ x].length) { result = array1 [ x]; } } return result; } console.log(find_longest_word('Web Development Tutorial')); Sample Output: var array = str.split(" "); Algebraically why must a single square root be done on all terms rather than individually? What is the ultimate goal of this function? 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. Just to note, your code should be failing your tests. Not the answer you're looking for? Line 4: The longestword function becomes a new variable, and nothing is assigned to it. Could the Lightning's overwing fuel tanks be safely jettisoned in flight? In order to avoid affecting the comparison of word lengths, the resulting string is then converted to lowercase. Plumbing inspection passed but pressure drops to zero overnight, Memory requirements only 4 integers / pointers (2 for pointers, 2 to remember the longest word found so far). Very short code; how you managed to simply write var longestWord in a such way in if condition ; Appreciate Really!! How do I replace all occurrences of a string in JavaScript? What method would you use to make sure you find the longest word? The callback then either reuses that word, or replaces it when it finds one that's longer. Return length of longest word in string (Javascript) javascript - Function to find longest word in a string - Code Review Whatever the memo is at the end is what gets returned. I'm confused because it showing cmax in console but after that giving an error. However, we can't just call this on the entire string because it will just return the length of the entire sentence. Therefore str.match(/\w[a-z]{0,}/gi) will return ["Web", "Development", "Tutorial"]. so i need to say if 6 is bigger than something to print it, but how do i tell the computer that 6 is the biggest, Powered by Discourse, best viewed with JavaScript enabled. The length property represents an unsigned, 32-bit integer that is always numerically greater than the highest index in the array. Asking for help, clarification, or responding to other answers. All three of those operations are wasteful, if you are aiming for performance. Sample Data and output: You should move the max variable declaration outside the loop. How does this compare to other highly-active people in recorded history? Learn in-demand tech skills in half the time. How to get an array of function property names from own enumerable properties of an object in JavaScript ? So, we need to split our sentence into separate words. What is the difficulty level of this exercise? Continuous Variant of the Chinese Remainder Theorem. Asking for help, clarification, or responding to other answers. Approach 4: Using split() and forloop. It returns this array: [The,"quick,brown,fox,jumped,over,the,lazy,dog]. How to create an element from a string in JavaScript ? The general direction of finding a string is to access the length property. Modify Problem Explanation: Find the Longest Word in String. }) How to display string values within a table using PHP ? You started out with. Three Ways to Find the Longest Word in a String in JavaScript How do I include a JavaScript file in another JavaScript file? 1 array.reduce ( (res, s) => Math.max (res, s.length), 0) - vp_arth Jun 28, 2016 at 0:53 4 Even shorter (complete code): Math.max (.string.split (" ").map (a => a.length));. In this approach we split the string using the String.split() method and sort the array using the Array.sort() method. acknowledge that you have read and understood our. Syntax -> arr.length. This makes every other word in your words array bigger than it. Are arguments that Reason is circular themselves circular and/or self refuting? 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? See the Pen Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Another approach, much less functional, could be to use String.replace as a "scan" function: The regex finds any run of non-whitespace character of length 1 or more. What is Mathematica's equivalent to Maple's collect with distributed option? Will remove my comments. So you will have to use array.length -1 instead of array.length. Can a lightweight cyclist climb better than the heavier one by producing less power? By testing the string in-place, I can find the longest word in only one pass, without duplicating it. Which generations of PowerPC did Windows NT 4 run on? replacing tt italic with tt slanted at LaTeX level? What I'm seeing is that you touch the data twice. Share your suggestions to enhance the article. Were some important methods mentioned in the lessons? Learn more about Stack Overflow the company, and our products. Learn more about Stack Overflow the company, and our products. What is the most efficient way to deep clone an object in JavaScript? Your response should be a number. First of all. Eliminative materialism eliminates itself - a familiar idea? And I don't see what's flawed about the test cases here? But you have to know how to do it in your brain first before you can translate. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. Find Word Character in a String with JavaScript RegExp. Can anyone explain my mistake? But you cant just have an empty for loop and expect us to tell you what to put in there. Line 1: We create a function. No splits, no arrays, no sorting: This is like getting biggest number algorithm. if you want me to give you an answer using javascript I honestly dont know As already mentioned you are looping too far and you need to move the max outside the loop. Also, replaced and final aren't exactly helpful variable names. Are self-signed SSL certificates still allowed in 2023 for an intranet server running IIS? How do I keep a party together when they have conflicting goals? Find the Longest Word in a String Using JavaScript nope, I would have to count every word and compare. str.split(" ").map(word => word.length) returns [3, 5, 5, 3, 6, 4, 3, 4, 3]. \n Is it superfluous to place a snubber in parallel with a diode by default? To learn more, see our tips on writing great answers. So, in this shot we are going to answer this question: how do we find the longest word in a long string? Why is an arrow pointing through a glass of water only flipped vertically but not horizontally? OverflowAI: Where Community & AI Come Together, Find the Longest Word in a String in javascript, Behind the scenes with the folks building OverflowAI (Ep. Eliminative materialism eliminates itself - a familiar idea? var q = Math.max.apply(null, lengths); I really like the solutions using .reduce but I was wondering whether it is noticeably faster than the Basic Code Solution. Stand out in System Design Interviews and get hired in 2023 with this popular free course. Do the 2.5th and 97.5th percentile of the theoretical sampling distribution of a statistic always contain the true population parameter? 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. Thanks everybody for the great suggestions! \n. findLongestWordLength(\"The quick brown fox jumped over the lazy dog\") should return 6. JavaScript Algorithm: The Longest Word in a String - Medium What is the least number of concerts needed to be scheduled in order that each musician may listen, as part of the audience, to every other musician? 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. Return the length of the longest word in the provided sentence. The search () method is case sensitive. str.splice(1,1); Can a lightweight cyclist climb better than the heavier one by producing less power? str.split(" ") splits the string into an array, taking spaces as separators. Forming the longest word in JavaScript - Online Tutorials Library Javascript: find longest word in a string - Stack Overflow } How to Create One-Time Events in JavaScript ? Finding the longest word in a string in JavaScript Thanks to @Kruga, here is a javascript implementation of my original pseudo code which gives the answer in a single pass. Do the 2.5th and 97.5th percentile of the theoretical sampling distribution of a statistic always contain the true population parameter? Making statements based on opinion; back them up with references or personal experience. Using .sort will be easy .When you sorted array in DESC order ,get longest string by just index 0. return findLongestWord(str); Example: This example uses the above-explained approach. What does "use strict" do in JavaScript, and what is the reasoning behind it? Can a judge or prosecutor be compelled to testify in a criminal trial in which they officiated? Clear as mud Let's just view the pictorial and this will make more sense , Split our sentence into an array of words. 33 Answers Sorted by: 1 2 Next 17 That's because you're not comparing all the items in the array, you leave out the last one. "Sibi quisque nunc nominet eos quibus scit et vinum male credi et sermonem bene". Then, we can collect the length of each word. Also, we will be using an arrow function and this whole task will be performed under it only. Plumbing inspection passed but pressure drops to zero overnight. var lengths = array.map(function(word){ What is telling us about Paul in Acts 9:1? 3 Answers Sorted by: 7 You need to provide an initial value to the reduce function, otherwise a blank string is the shortest word: The placeholder which to replace can obviously be anything. what is the shortest word in this array using function and easy method? Improve this sample solution and post your code through Disqus. Now, How can I say that 6 is bigger than the rest?
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