Your task to filter the string. Take a string from user and remove all the character except alphabets and numbers. Use of regular expression is must
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- A. Which statement about regular expressions is correct? a. To find all occurrences of a matching substring for a regular expression, you must add thegflag. b. By default, pattern matching using regular expressions locates all matches in the searched string. c. To find all occurrences of a matching substring for a regular expression, you must add theiflag. d. The default behavior of a regular expression is modified by adding flags to the beginning of the expression. B. After the following JavaScript statements execute, the value ofcrayonsis["pink", "blue", "green"]. let crayons = ["pink", "purple"];crayons.shift();crayons.unshift("blue", "green"); Select one: True FalseCode it. How do you find the count for the occurrence of a particular character in a string?.I have to add this solution to a conversion code. This chapter is focused on strings and string manipulation, including slicing, searching, splitting, and case conversions. Can you help me with this? 1. Ask the user for their name and their email address before you display the results of the conversions. 2. When the user enters the email address search the string for the @ symbol. If the symbol is not found, ask the user to re-enter their email address till they get it right. 3. When you display the conversion output to the user, you must include the user’s name in the output
- Create a string from two given strings by concatenating common characters of the given strings. Sample Input harry, hermione dean, tom Sample Output hrrhr Nothing in common. Again, you have lost your USIS password!! You went to the registrar office and requested for a new password. This time, you need to follow some rules to set your password. Otherwise, they won't change it. The rules are At least one lowercase letter At least one uppercase letter At least one digit (0-9) At least one special character (_ , $ , #, @) Your task is to find whether a given password follows all those rules. If it breaks any rule, you have to print Lowercase Missing, Uppercase Missing, Digit Missing or Special Missing respective to the missing case. For more than one rule break, print all the rules that were broken (order doesn't matter). If the password is ok, print OK. Sample Input ohMyBR@CU ohmybracu OhMyBR@CU20 Sample Output Digit missing Uppercase character missing,…This program is a simple example of manipulating stringcontent. On Line 8, we print out the first element of the stringstr1. On Line 9, we accessed the first element of the stringstr2 and assigned the character ‘K’ to it. When Line 10 is called, the content of str2 is now updated. Line 12 shows us string concatenation. What happened on Line 14?Using JAVASCRIPT, print the count of all the vowels present in the string "Data Structures and Algorithms". The strings contain both uppercase and lowercase vowels.
- The Problem: How do you reverse the word in a string without using atemporary string.The Problem: How do you reverse the word in a string without using atemporary string.Create a single regular expression that matches a string of digits and contains exactly two fives. Examples of acceptable strings include: "15445 " , " 55 " , " 05563 " . However, the string is to be rejected if it contains anything other than digits.You have given a string which contains duplicate characters. Write a program to remove all these duplicate characters and return a string which contains only unique element. In coffee- script
- Write a program that reads in a line consisting of a student’s name, Social Security number, user ID, and password. The program outputs the string in which all the digits of the Social Security number and all the characters in the password are replaced by x. (The Social Security number is in the form 000-00-0000, and the user ID and the password do not contain any spaces.) Your program should not use the operator [] to access a string element. Use the appropriate functions described in Table 7-1 below. Expression Effect strVar.at(index) Returns the element at the position specified by index strVar[index] Returns the element at the position specified by index strVar.append(n, ch) Appends n copies of ch to strVar, where ch is a char variable or a char constant strVar.append(str) Appends str to strVar strVar.clear() Deletes all the characters in strVar strVar.compare(str) Returns 1 if strVar > str returns 0 if strVar == str; returns −1 if strVar < str…For this project, you will be writing regular expressions that look for and find all instances of a date in any given string. Your program should: Find the following different formats for dates: August 2nd, 1994 august 2, 1994 08/02/1994 08/02/94 08-02-1994 Your program should be case insensitive using re.IGNORECASE Your program can only have a maximum of two different regexes. A special prize goes to those of you who can fit all of this into one regex Your program should be able to tell if the date is a valid date. For example, if the date says 99/99/99, then your program should ignore this as a date. HINT: this is not done within the regex. Try saving your dates to something like a list and going through that list after your regex runs. At the end of your program, it should print out all of the dates in the following format: mm/dd/yyyy. EX. 08/02/1994 Your program should use at least two character classes, you may need more. Feel free to make your own custom classes as well.…Section Test of Application... Note: You need to press "Final Submit" for your pr Given a string in which the same character occurs in many.consecutive character elements. Your task is to find the characters that have even frequency and are consecutive. Display the sum of every frequency count (For even frequency only). Example1: Input aaabbaccccdd Input String Output: Explanation: Input string "aabbaccccdd" contains 'a' 3 times, b' 2 times, again 'a' 1 time, 'c' 4 times, and 'd 2 times Here, the frequency of b.c and d is even and the frequency count is 2,4 and 2 respectively. Hence the output32-4-2%3D8 Example2: input: vdkkmmmnn Output Buns andur-