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Discussion on: A New Coding Style for Switch Statements in JavaScript/TypeScript

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Replies for: Reading this again (it's good, well done Bryan!). I've been thinking about switch statements that collect a value so it can be returned at the end...

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nebrius profile image
Bryan Hughes •

This is a great insight! I combined this with a post above and created a little helper module: npmjs.com/package/conditional-reduce

Code looks like:

console.log(conditionalReduce('dog', {
  dog: () => 'Dogs are great pets',
  cat: () => 'Cat\'s are also great'
})); // Prints "Dogs are great pets"
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john_papa profile image
John Papa • • Edited

So with that ... the code would be somehtng like this, for the example you and I used first. RIght?

let whatHappened = conditionalReduce(body.type, {
  'isBasic': () => {
    const entry = getBasicEntry(body.id);
    console.log(`Processing basic entry "${entry.name}"`);
    result doBasicProcessing(entry);
  },
  'isCustom': () => {
    const entry = getCustomEntry(body.id);
    console.log(`Processing custom entry "${entry.name}"`);
    return doCustomprocessing(entry);
  });
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nebrius profile image
Bryan Hughes •

A few syntax issues aside, yes ;-)

It would look like:

let whatHappened = conditionalReduce(body.type, {
  'isBasic': () => {
    const entry = getBasicEntry(body.id);
    console.log(`Processing basic entry "${entry.name}"`);
    return doBasicProcessing(entry);
  },
  'isCustom': () => {
    const entry = getCustomEntry(body.id);
    console.log(`Processing custom entry "${entry.name}"`);
    return doCustomprocessing(entry);
  }
});
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john_papa profile image
John Papa •

yeah, i figured the dev.to editor wouldn't protect me and that you'd forgive those mistakes :)