strings-interpolation

Elevate your JavaScript development with strings-interpolation, a powerful tool for crafting dynamic template strings with built-in default value functionality.

Installation

npm install --save strings-interpolation

API

stringInterpolation(string: string, data: any): string

Dynamically interpolates a template string using provided data.

• Parameters:

  • string: The template string containing placeholders like {{ key }} or {{ key || defaultValue }}.
  • data: An object (Record<string, any>) matching keys in the template string.

• Returns: The interpolated string. If a key in the template is not found in the data object, the function uses the defaultValue specified in the template, or an empty string if no default is provided.

• Example:

  const template = "Hello, {{name || guest}}! Score: {{score || 0}}";
  const interpolatedString = stringInterpolation(template, {
    name: "John",
    score: 42,
  });
  // Output: "Hello, John! Score: 42"

parseInterpolation(string: string): string[]

Analyzes a template string and extracts the keys and their respective default values.

• Parameters:

  • string: A string containing template placeholders.
  • Returns: An array of keys used in the template. If a default value is provided for a key, it is included in the format key || defaultValue.

• Example:

  const template =
    "Welcome, {{user || visitor}}! Your access level: {{level || standard}}";
  const keys = parseInterpolation(template);
  // Output: ["user", "level"]