Replace keywords from text using javascript

Question

How can I replace values from a string like that:

// "Hello ##name##, today is ##date##"

It's possible like that:

    var string = "Hello ##name##, today is ##date##"
    console.log(string.replace('##name##', 'John Doe'));

But how replace the ##date##too, and build the string again?

`string.replace('##name##', 'John Doe').replace('##date##', new Date())` and note `replace()` will return new string — Satpal, Jul 11 '18 at 08:22
I suggest using JavaScript Templating Engines eg mustache.js — Grzesiek, Jul 11 '18 at 08:27

score 8 · Accepted Answer · answered Jul 11 '18 at 08:24

8

You would use a regex and pass a function as a second argument:

var string = "Hello ##name##, today is ##date##";
const map = {name: 'Foo', date: 'bar'};

console.log(string.replace(/##(\w+)##/g, (_,m) => map[m]));

answered Jul 11 '18 at 08:24

baao

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Replace keywords from text using javascript

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