javascript - How can I convert a string into a unicode character?

Question

In Javascript 'uXXXX' returns in a unicode character. But how can I get a unicode character when the XXXX part is a variable?

For example:

var input = '2122';
console.log('\u' + input);             // returns a string: "u2122"
console.log(new String('\u' + input)); // returns a string: "u2122"

The only way I can think of to make it work, is to use eval; yet I hope there's a better solution:

var input = '2122';
var char = '\u' + input;
console.log(eval("'" + char + "'"));    // returns a character: "?"

question from:https://stackoverflow.com/questions/7063255/how-can-i-convert-a-string-into-a-unicode-character

Answer 1

Use String.fromCharCode() like this: String.fromCharCode(parseInt(input,16)). When you put a Unicode value in a string using u, it is interpreted as a hexdecimal value, so you need to specify the base (16) when using parseInt.