Google Sheet IFS in TypeScript

Introduction

Google Sheet IFS (Inline Function Syntax) is a powerful feature that allows for complex computations within a cell of a Google Sheet. With the use of TypeScript, developers can enhance the functionality of IFS by introducing type safety and error handling.

Benefits of Using TypeScript with Google Sheet IFS

1. Type Safety: TypeScript provides the ability to explicitly define data types, reducing the likelihood of runtime errors caused by type mismatches.

2. Easy to Debug: TypeScript's rich language features such as interfaces and classes, along with its static type-checking, make it easier to debug code and detect errors earlier in the development cycle.

3. Better Code Organization: TypeScript allows developers to modularize their code using modules and namespaces, making it easier to organize and maintain larger projects.

Example Code

function calculateAverage(scoreRange: string, difficultiesRange: string) {
  const scores = JSON.parse(scoreRange);
  const difficulties = JSON.parse(difficultiesRange);

  if (!Array.isArray(scores) || !Array.isArray(difficulties)) {
    throw new Error("Invalid input. Expected arrays");
  }

  if (scores.length !== difficulties.length) {
    throw new Error("Input arrays sizes do not match");
  }

  const weightedSum = scores.reduce((sum, score, index) => {
    const difficulty = difficulties[index];
    return sum + score * difficulty;
  }, 0);

  const totalDifficulty = difficulties.reduce((sum, difficulty) => sum + difficulty, 0);

  return weightedSum / totalDifficulty;
}

In the above code, we have a TypeScript function that calculates the weighted average of a set of scores with their respective difficulties. The function takes in two parameters, scoreRange and difficultiesRange, both of which are expected to be JSON-encoded arrays.

The function first checks that both input parameters are arrays. If either is not an array, it throws an error. The function then checks that the input array sizes are equal, which is necessary to perform the computation.

The function then computes the weighted sum and the total difficulty and returns the weighted average.

Conclusion

TypeScript can enhance the functionality of Google Sheet IFS by providing type safety and error handling. This allows developers to debug their code more easily and organize their projects more effectively.