Substitute terms in a sentence according to the guidelines

Question

Substitute terms in a sentence according to the guidelines

Looking to transform strings based on specific rules?

"Hello {{firstName}}, this is {{senderName}}."

Consider the following rules:

rules = {
  firstName: "Alex",
  senderName: "Tracy"
}

The expected output would be:

"Hello Alex, this is Tracy."

If you need a versatile function to automate this process for any string and set of rules, look no further.

Take for instance:

let array = "Hello {{firstName}} {{lastName}}, this is {{senderName}}."
rules = {
  firstName: "Alex",
  lastName: "James",
  senderName: "Tracy"
}
expectedResult = "Hello Alex James, this is Tracy."

Your assistance in achieving this task would be highly valued.

typescript

Answer 1

Answer №1

One way to dynamically replace variables with their corresponding values in a string is by looping through the rules object and using the replace method.


function resolveVariables(rules, str){
  for(let key in rules){
    str = str.replace("{{"+key+"}}", rules[key]);
  }
  return str;
}

let message = "Hello {{firstName}} {{lastName}}, this is {{senderName}}.";
const rules = {
  firstName: "Alex",
  lastName: "James",
  senderName: "Tracy"
};

console.log(resolveVariables(rules, message));

Answer 2

One way to dynamically replace variables with their corresponding values in a string is by looping through the rules object and using the replace method.


function resolveVariables(rules, str){
  for(let key in rules){
    str = str.replace("{{"+key+"}}", rules[key]);
  }
  return str;
}

let message = "Hello {{firstName}} {{lastName}}, this is {{senderName}}.";
const rules = {
  firstName: "Alex",
  lastName: "James",
  senderName: "Tracy"
};

console.log(resolveVariables(rules, message));

Answer 3

Answer №2

To enhance your code, consider utilizing a replacement function that can be utilized with String.prototype.replace:

const str = "Hello {{firstName}} {{lastName}}, this is {{senderName}}."
const mapping = {
  firstName: "Alex",
  lastName: "James",
  senderName: "Tracy"
}
const compile = (template, rules) => template.replace(/{{(.+?)}}/g, (match, group) => rules[group]);

const result = compile(str, mapping);
console.log(result);

Answer 4

To enhance your code, consider utilizing a replacement function that can be utilized with String.prototype.replace:

const str = "Hello {{firstName}} {{lastName}}, this is {{senderName}}."
const mapping = {
  firstName: "Alex",
  lastName: "James",
  senderName: "Tracy"
}
const compile = (template, rules) => template.replace(/{{(.+?)}}/g, (match, group) => rules[group]);

const result = compile(str, mapping);
console.log(result);

Substitute terms in a sentence according to the guidelines

Answer №1

Answer №2

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