https://github.com/stevemao/inspect-compose

compose with debuggable glory
https://github.com/stevemao/inspect-compose

Last synced: 6 days ago
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compose with debuggable glory

• Host: GitHub
• URL: https://github.com/stevemao/inspect-compose
• Owner: stevemao
• Created: 2017-05-21T01:34:19.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2017-05-21T01:44:12.000Z (over 7 years ago)
• Last Synced: 2024-12-07T19:37:24.855Z (26 days ago)
• Language: JavaScript
• Homepage:
• Size: 5.86 KB
• Stars: 3
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md

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README

        
# Problem

```js

var add = curry(function add(x, y){ return x + y });

var map = curry(function map(f, xs){ return xs.map(f) });

var head = function(xs){ return xs[0] };

var inc = add(1);

var incFirst = compose(head, map(inc))

```

When trying to `console.log` a function we’re presented with the guts of some internal compose implementation that tells us nothing.

# Before

```js

console.log(incFirst)

// function f(result) {

//   for (var i = fns.length - 1; i > -1; i--) {

//     result = fns[i].call(this, result);

//   }

//   return result;

// }

```

# After

```js

console.log(incFirst)

// compose(function (xs){ return xs[0] }, map(add(1)))

```

See https://medium.com/@drboolean/debugging-functional-7deb4688a08c

# Related

- [inspect-curry](https://github.com/stevemao/inspect-curry)

- [composition-trace](https://github.com/stevemao/composition-trace)