JavaScript: Check whether a given string contains equal number of p's and t's
JavaScript Basic: Exercise-55 with Solution
Write a JavaScript program to check whether a given string contains an equal number of p's and t's.
Pictorial Presentation:
Sample Solution:
JavaScript Code:
// Define a function named equal_pt with parameter str
function equal_pt(str) {
// Replace all characters except 'p' with an empty string and store the result in str_p
var str_p = str.replace(/[^p]/g, "");
// Replace all characters except 't' with an empty string and store the result in str_t
var str_t = str.replace(/[^t]/g, "");
// Get the length of str_p and store it in p_num
var p_num = str_p.length;
// Get the length of str_t and store it in s_num
var s_num = str_t.length;
// Return true if the lengths of str_p and str_t are equal; otherwise, return false
return p_num === s_num;
}
// Log the result of calling equal_pt with the given strings to the console
console.log(equal_pt("paatpss"));
console.log(equal_pt("paatps"));
Sample Output:
false false
Live Demo:
See the Pen JavaScript - Check whether a given string contains equal number of p's and t's - basic-ex-55 by w3resource (@w3resource) on CodePen.
Flowchart:
ES6 Version:
// Define a function named equal_pt with parameter str
const equal_pt = (str) => {
// Use regular expressions to replace characters other than 'p' with an empty string
const str_p = str.replace(/[^p]/g, "");
// Use regular expressions to replace characters other than 't' with an empty string
const str_t = str.replace(/[^t]/g, "");
// Get the lengths of the modified strings
const p_num = str_p.length;
const s_num = str_t.length;
// Return whether the lengths of the 'p' and 't' strings are equal
return p_num === s_num;
};
// Log the result of calling equal_pt with the given strings to the console
console.log(equal_pt("paatpss"));
console.log(equal_pt("paatps"));
Previous: JavaScript program to count the number of vowels of a given string.
Next: JavaScript program to divide two positive numbers and return a string with properly formatted commas.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
- Weekly Trends and Language Statistics
- Weekly Trends and Language Statistics