Here, we are going to learn how to check whether a given number is palindrome or not in JavaScript.
如果一个字符串忽略标点符号、大小写和空格,正着读和反着读一模一样,那么这个字符串就是palindrome(回文)。 注意你需要去掉字符串多余的标点符号和空格,然后把字符串转化成小写来验证此字符串是否为回文。 函数参数的值可以为"racecar",“RaceCar"和"race ......
Example Below is an example to find if the string is a palindrome using JavaScript String and Array Methods ? Open Compiler // Function to check for Palindrome function isPalindrome(str) { const lowerCaseStr = str.toLowerCase(); const modifiedStr = lowerCaseStr.replace(/[\W_]/g, '');...
Another method to check if a string is a palindrome or not is by using aforloop. Below are the steps to check if a string is a palindrome in JavaScript. functionpalindromeFn(string){conststringLength=string.length;for(leti=0;i<stringLength/2;i++){if(string[i]!==string[stringLength-1...
Example x = 32243; Expected Output :34223 Click me to see the solution 2. Check Palindrome Write a JavaScript function that checks whether a passed string is a palindrome or not? A palindrome is word, phrase, or sequence that reads the same backward as forward, e.g., madam or nurses ru...
palindrome string / 回文 字符串 "use strict";/** * *@authorxgqfrms*@licenseMIT*@copyrightxgqfrms*@created2020-05-25 *@modified* *@descriptionpalindrome 回文 recursive *@augments*@example*@link* */constlog =console.log;constpalindromeChecker= (str =``) => {constlen = str.length;if(len ...
Check for Palindrome function isPalindrome(str) { return str === str.split('').reverse().join(''); } console.log(isPalindrome("racecar")); // Output: true Write a function to calculate the factorial of a number. function factorial(n) { if (n === 0 || n === 1) { return...
isPalindrome('toyota') // = false 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 或者 function checkPalindrom(str) { return str == str.split('').reverse().join(''); } 1. 2. 3. 类似的:在 O(n)时间复杂度内判断一个字符串是否包含在回文字符串内。你能在O(1)时间解决问题...
isPalindrome("race Car"); // true function isPalindrome(word) { // Replace all non-letter chars with "" and change to lowercase var lettersOnly = word.toLowerCase().replace(/\s/g, ""); // Compare the string with the reversed version of the string return lettersOnly === letters...
isPalindrome("racecar"); // true isPalindrome("race Car"); // true function isPalindrome(word) { // Replace all non-letter chars with "" and change to lowercase var lettersOnly = word.toLowerCase().replace(/\s/g, ""); // Compare the string with the reversed version of the strin...