limit length of string javascript code example

Example 1: js string limit length

string.substring(0,lengthRequired+1);

Example 2: javascript set max length of string

String.prototype.trimEllip = function (length) {
  return this.length > length ? this.substring(0, length) + "..." : this;
}

Example 3: javascript max characters string function

const getMaxLetter = (str) => {
  let max = 0;
  let maxChar = '';
  str.split('').forEach((char) => {
    if (str.split(char).length > max) {
      max = str.split(char).length - 1;
      maxChar = char;
    }
  });
  return `The max letter is : ${maxChar} and the max number of times it is seen is: ${max} times`;
};