Replace keywords from text using javascript [duplicate]

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
– Satpal, Commented Jul 11, 2018 at 8:22
I suggest using JavaScript Templating Engines eg mustache.js — Grzesiek
– Grzesiek, Commented Jul 11, 2018 at 8:27

baao · Accepted Answer · 2018-07-11 08:24:13Z

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, 2018 at 8:24

baao

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