Replace keys in template string with object properties

Question

I have an object like this.

var obj = {Id:1,Rate:5,Price:200,Name:\"History\"}

And a template like this.

var templateString         


        

Answer 1

You can use replace with a callback :

var optionString = templateString.replace(/{(\w+)}/g, function(_,k){
      return obj[k];
});

Demonstration

Answer 2

Without using regex, this can be done by finding all the properties of the object using Object.keys and then replace each of them by it's value.

Try like this:

Object.keys(obj).forEach(key => {
  templateString = templateString.replace(`**${key}**`, `"${obj[key]}"`);
});

Answer 3

Just this will work for you if it has just one occurrence

var optionString = templateString.replace('{Id}',obj.Id).replace('{Name}',obj.Name)