Feb 11, 2010 · Syntax: string.slice(start, stop); Syntax: string.substring(start, stop); What they have in common: If start equals stop: returns an empty string If stop is omitted: extracts characters to the end …

215 JavaScript doesn't have an exact analogue for C#'s extension methods. JavaScript and C# are quite different languages. The nearest similar thing is to modify the prototype object of all string objects: …

How do you reverse a string in-place in JavaScript when it is passed to a function with a return statement, without using built-in functions (.reverse(), .charAt() etc.)?

JavaScript automatically converts primitives to String objects, so that it's possible to use String object methods for primitive strings. In contexts where a method is to be invoked on a primitive string or a …

I want to sort a string in javascript without using a built in method, just by using for's and comparisons like 'a' > 'b'; Something that doesn't work: function replaceAt(str, i, char) {

174 There are two main ways to convert a string to a number in JavaScript. One way is to parse it and the other way is to change its type to a Number. All of the tricks in the other answers (e.g., unary …

It works on a null string, and on an empty string and it is accessible for all strings. In addition, it could be expanded to contain other JavaScript empty or whitespace characters (i.e. nonbreaking space, byte …

Jun 22, 2009 · 5409 How do I make the first character of a string uppercase if it's a letter, but not change the case of any of the other letters? For example: "this is a test" → "This is a test" "the Eiffel Tower" …

Note: In general, extending the built-in prototypes in JavaScript is generally not recommended. I am providing as extensions on the String prototype simply for purposes of illustration, showing different …

In all other cases, you're safe to use ==. Not only is it safe, but in many cases it simplifies your code in a way that improves readability. I still recommend Crockford's talk for developers who don't want to …