React Native

Get a Mail-Merge Replacement String by Pattern

Demonstrates the Chilkat Email.GetReplaceString2 method, which returns the replacement string for a previously-defined pattern/replacement pair, looked up by the pattern itself (a mail-merge feature). This example defines two pairs and looks up the replacement for one pattern by name.

Background: Where GetReplaceString fetches a replacement by its numeric position, GetReplaceString2 fetches it by the pattern — convenient when you already know the token (say FIRST_NAME) and just want its configured substitution without scanning the whole list.

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React Native

import { Email } from '@chilkat/react-native'

function chilkatExample() {
  // Demonstrates the GetReplaceString2 method, which returns the replacement string for a
  // previously-defined pattern/replacement pair, looked up by the pattern itself (a
  // mail-merge feature).

  const email = new Email();
  email.subject = 'Hello FIRST_NAME';
  email.body = 'Dear FIRST_NAME, welcome to CITY.';

  email.setReplacePattern('FIRST_NAME', 'John');
  email.setReplacePattern('CITY', 'Denver');

  // Look up the replacement for a specific pattern.
  const repl = email.getReplaceString2('FIRST_NAME');
  console.log(`FIRST_NAME -> ${repl}`);
}