Answers for "javascript if string only contains numbers"

1

check if a string contains digits js

function hasNumber(myString) {
  return /\d/.test(myString);
}
Posted by: Guest on July-22-2020
-1

javascript check if string includes numbers

/**
 * Function to check if a string contains any numbers
 * @author Sebastian Keable
 * @param {String} str - String to be checked.
 * @returns {Boolean} str - Result of the check.
 */
function containsNumbers(str){
  var regexp = /\d/g;
  return regexp.test(str);
};

// use function below
containsNumbers("Here are some Numbers 2123"); // => true
containsNumbers("Here are no Numbers"); // => false
Posted by: Guest on April-19-2021
-1

how to check if a string contains numbers in javascript

/**
 * Function to check if a string contains numbers
 * @author Okoro Redemption
 * @param {String} str - The string to be checked.
 * @returns {Boolean} str - The result of the check.
 */
function hasNumbers(str){
  var regexp = /d/g;
  return regexp.test(str);
};

// use function below
hasNumbers("I am 20years old"); // => true
hasNumbers("I am a boy"); // => false
Posted by: Guest on January-09-2021

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