The provided content covers a wide range of topics related to JavaScript strings, including polyfills for ES6 string methods and common interview problems. Below is an organized summary with additional insights and examples:
Polyfills for ES6 String Methods
startsWith(), endsWith(), and includes()
These methods are used to check if a string starts with, ends with, or includes another string.
Polyfill Example:
javascript1String.prototype.myStartsWith = function(search) { 2 return this.slice(0, search.length) === search; 3}; 4 5String.prototype.myEndsWith = function(search) { 6 return this.slice(this.length - search.length) === search; 7}; 8 9String.prototype.myIncludes = function(search) { 10 return this.indexOf(search) !== -1; 11};
repeat()
This method repeats a string a specified number of times.
Polyfill Example:
javascript1String.prototype.myRepeat = function(count) { 2 if (count < 0 || count === Infinity) throw new RangeError("Invalid count value"); 3 let result = ""; 4 for (let i = 0; i < Math.floor(count); i++) { 5 result += this; 6 } 7 return result; 8}; 9 10[Read the full article at DEV Community](https://dev.to/satyasootar/string-polyfills-and-common-interview-methods-in-javascript-5bhn) 11 12--- 13 14**Want to create content about this topic?** [Use Nemati AI tools](https://nemati.ai) to generate articles, social posts, and more.

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