How To Find The Longest Word In A String Using Javascript

04 Sep, 2021

At the end max has the length of longest word. Word str i.

How To Find The Longest Word In A String In Javascript Samanthaming Com

Function longest_stringstr_ara var max str_ara 0length.

How to find the longest word in a string using javascript. For loop checks the length of the array element and compare with previous one and finally return the longest string. The program takes following steps to find the longest string. After that I returned the last index of the new array which is the longest length.

The reduce method applies a function against an accumulator and each value of the array from left-to-right to reduce it to a single value. Result str_arafilterv vlength max. Function findLongestWordstr split string into an array const splStrArray strsplit.

When I call longestWord Pride and Prejudice it returns Pride and not Prejudice which is the longest word. Both the approach are described below with the example. So we need to split our sentence into separate words.

In this article we will use two JavaScript methods sort method and the reduce method to find out the longest string the array. In this approach we use regex to split the string into an array of words by using the regex a-zA-Z0-9gi and then using for loop iterate the array and search the largest string. For var i 0.

How to find the longest word in a String with JavaScriptdisplay the longest word in a sentence with outputFind the Longest Word in a String JavaScriptHow to. Function longest string return stringtrim split sreduce longest word wordlength longestlength. Function findLongestWord str.

Find length of each word in the array and copy in a variable called max. Function longestWordtext var sortedArray textsplit sortwordA wordB wordBlength - wordAlength return sortedArray Notice that within our compare function we subtract the length of the second word from that to the first. However we cant just call this on the entire string because it will just return the length of the entire sentence.

The first part Guess what the longest word in the dictionary is is the given example sentence we are trying to find the longest word for. Var longest 0. In this approach we will usesort method which calls a.

Reduce aka fold in other languages when given no 2nd argument will use the first element - the first word - in the array as its initial memo. First to work with it we need to get it into an array and so we use Strings split method. There are many way to find longest word in a string but we can use for this solution we will use the Arrayprototypereduce.

Consoleloglongest_stringa aa aaa aaaaaaaaa Copy. Accept the string in a function findLengthLongest. The separator is where we want to split the string.

Order the length of words in the array from highest to lowest using the sort array method const orderedArray splStrArraysorta b blength - alength pick out the longest which would be the first item in the array with index 0 const longestWord2 orderedArray return longestWord2. Use JavaScript regex to extract each word from the string. Then we split the string into array of words using the split function.

I strlength - 1. Store the words in an array. Get my free 32 page eBook of JavaScript HowTos httpsbitly2Th.

The length property represents an unsigned 32-bit integer that is always numerically greater than the highest index in the array. Str_aramapv max Mathmax max vlength. Const stringArray strsplit.

Split takes a separator as an argument. In this case that will be a space. Now we have array to work with.

I if longest str ilength longest str ilength. Split The general direction of finding a string is to access the length property. Find longest word in a string.

In this tutorial youll learn how to find the longest word in a String with JavaScript. Var word null. Then we sorted the array with sorter function passed to it.

Return word. I basically split the string pushed all the word lengths in an empty array then used the ascending sort function. Function longestWord string var str stringsplit.

Find Longest Word In A Given String Dev Community