JarCastingnoncharacters 
34 non-character code points (labeled ), that are set aside and guaranteed to never be used for a character. Perfect to use for placeholders or temporary replacements during string transformations.
See the wikipedia article on non-characters. Also, I used regenerate from mathiasbynens to generate the range of characters.
Install with npm
npm i noncharacters --save
Usage
var noncharacters = require('noncharacters');
//=> ['\uFFFF', '\uFFFE', ...]
Example
Let's say you need to transform a string but you need to temporarily replace some characters that might cause issues.
Create your own placeholders:
// arbitrary characters we want to replace,
// mapped to placeholder non-characters
var placeholders = {
'{': noncharacters[0],
'}': noncharacters[1]
};
// the string with characters to replace
var str = 'This is a template: {name}';
// actually replace the characters
Object.keys(placeholders).forEach(function(ch) {
str = str.replace(ch, placeholders[ch]);
});
//=> This is a template: \uFFFFname\uFFFE
Now you can do whatever you want to str. Then, to change back:
Object.keys(placeholders).forEach(function(ch) {
str = str.replace(placeholders[ch], ch);
});
//=> This is a template: {name}
Run tests
Install dev dependencies:
npm i -d && npm test
Contributing
Pull requests and stars are always welcome. For bugs and feature requests, please create an issue
Author
Jon Schlinkert
License
Copyright (c) 2015 Jon Schlinkert
Released under the MIT license
This file was generated by verb-cli on February 27, 2015.