Issue #168  (String.fromCharCode(), CSS/HTML, Text Editors, Productivity)10/06/16

The String object in JavaScript has two methods that allow you to produce a string from a sequence of Unicode values. The first method is String.fromCharCode(), and has full browser support. Here's how it looks in action:

// Output: ¯\_(ツ)_/¯

This will output the famous shrugging ASCII character as shown in this JS Bin.

The String.fromCharCode() method will return a string and you have to use it as a method of the global String object rather than on a string you've created yourself. So if your app receives Unicode values as input, this method can be used to produce output based on the values received.

As explained on MDN, in order to deal with all legal Unicode values up to 21 bits, this method won't be enough (though it's probably more than sufficient for most cases). ES6 has therefore introduced String.fromCodePoint() to fill this gap. In this JS Bin you can see the different output when using a character from a high code point with each of the two methods. MDN's article on the topic also includes a polyfill to get support in IE and Safari, the only browsers that don't support the new method.

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