How do I check for an empty/undefined/null string in JavaScript?
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. …
How do I write an extension method in JavaScript?
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 …
javascript - Add method to string class - Stack Overflow
Jun 7, 2019 · I'd like to be able to say something like this in javascript : "a".distance("b") How can I add my own distance function to the string class?
javascript - What is the difference between String.slice and String ...
Feb 11, 2010 · It's an example of the poor design of JavaScript that we ended up with three methods that all do the same thing, but with different quirks. IMO slice is the one with the least …
How do I make the first letter of a string uppercase in JavaScript?
Jun 22, 2009 · If you use Underscore.js or Lodash, the underscore.string library provides string extensions, including capitalize: _.capitalize (string) Converts first letter of the string to …
How can I convert a string to an integer in JavaScript?
173 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., …
What is the correct way to check for string equality in JavaScript ...
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 …
Remove whitespaces inside a string in javascript
May 29, 2012 · Remove whitespaces inside a string in javascript Asked 13 years, 6 months ago Modified 2 years, 8 months ago Viewed 436k times
javascript - Sort string without any builtin methods - Stack Overflow
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) {
Are JavaScript strings immutable? Do I need a "string builder" in ...
Sep 9, 2008 · They are immutable. You cannot change a character within a string with something like var myString = "abbdef"; myString[2] = 'c'. The string manipulation methods such as trim, …