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stukennedy/index.html

Created April 25, 2018 22:35
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JS Bin // source https://jsbin.com/tuxubuk
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS Bin</title>
</head>
<body>
<script id="jsbin-javascript">
// jshint esnext: true
'use strict';
var curry = function curry(f) {
return function () {
for (var _len = arguments.length, a = Array(_len), _key = 0; _key < _len; _key++) {
a[_key] = arguments[_key];
}
return a.length < f.length ? curry(f.bind.apply(f, [undefined].concat(a))) : f.apply(undefined, a);
};
};
var clone = function clone(obj) {
return Object.assign({}, obj);
};
var chain = function chain() {
for (var _len2 = arguments.length, fs = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
fs[_key2] = arguments[_key2];
}
return function (a) {
return fs.reduce(function (o, f) {
return f(o);
}, a);
};
};
var isEmpty = curry(function (a) {
return !a || a === null || a === '' || Object.values(a).length === 0;
});
var isString = curry(function (a) {
return typeof a === 'string';
});
var isArray = curry(function (a) {
return Array.isArray(a);
});
var range = curry(function (size) {
return Array(size).fill(undefined).map(function (x, i) {
return i;
});
});
var keys = curry(function (o) {
return Object.keys(o);
});
var values = curry(function (o) {
return Object.values(o);
});
var fromPairs = function fromPairs(arr) {
return arr.reduce(function (o, el) {
o[el[0]] = el[1];return o;
}, {});
};
var mapValues = curry(function (fn, a) {
return Object.keys(a).reduce(function (o, k) {
o[k] = fn(a[k], k);return o;
}, {});
});
var pickBy = curry(function (fn, a) {
return Object.keys(a).reduce(function (o, k) {
if (fn(a[k], k)) o[k] = a[k];return o;
}, {});
});
var reduce = curry(function (fn, k, a) {
return a.length ? a.reduce(fn, k) : Object.keys(a).reduce(function (o, i) {
return fn(o, a[i], i);
}, k);
});
var filter = curry(function (fn, args) {
return args.length ? args.filter(fn) : pickBy(fn, args);
});
var map = curry(function (fn, args) {
return args.length ? args.map(fn) : mapValues(fn, args);
});
var fromPath = curry(function (path) {
return path.replace('[', '.').replace(']', '').split('.');
});
var get = curry(function (p, a) {
return (isArray(p) ? p : fromPath(p)).reduce(function (acc, o) {
return acc ? acc[o] : acc;
}, a);
});
var set = curry(function (p, value, obj) {
var i = undefined;
var objClone = clone(obj);
var point = objClone;
var path = isArray(p) ? p : fromPath(p);
for (i = 0; i < path.length - 1; i++) {
point[path[i]] = point[path[i]] || (isString(path[i + 1]) ? {} : []);
point = point[path[i]];
}
point[path[i]] = value;
return objClone;
});
console.log(
// fromPath('the.many[0].ways'),
chain(set('the.many[5].ways', 'YO'), get(['the', 'many', 5, 'ways'])
// get('the.many[5].ways')
)({}));
// Example
// const addAll = curry((a, b) => a + b)
// const square = curry((n) => n * n)
// const a = chain(
// addAll(2),
// square
// )(2)
// console.log(a)
// const output = chain(
// map((x, i) => i),
// filter(x => x % 2)
// )(range(100))
// console.log(output)
// const obj = { a: 'foo', b: 'bar' }
// const arr = [ 'foo', 'bar' ]
// console.log(
// map(x => x + '-', obj),
// map(x => x + '-', arr)
// );
// console.log(
// chain(
// range,
// map((x) => ['_' + x + '_', 100 + x]),
// fromPairs,
// map((x, i) => i + 'what'),
// filter((x, i) => i !== '_5_'),
// reduce((acc, x, k) => acc + k, '')
// )(10)
// )
// console.log(isEmpty([0]))
</script>
<script id="jsbin-source-javascript" type="text/javascript">// jshint esnext: true
const curry = (f) => (...a) => (a.length < f.length) ? curry(f.bind(this, ...a)) : f(...a)
const clone = (obj) => Object.assign({}, obj)
const chain = (...fs) => (a) => fs.reduce((o, f) => f(o), a)
const isEmpty = curry((a) => !a || a === null || a === '' || Object.values(a).length === 0)
const isString = curry((a) => (typeof a === 'string'))
const isArray = curry((a) => Array.isArray(a))
const range = curry((size) => Array(size).fill(undefined).map((x, i) => i))
const keys = curry((o) => Object.keys(o))
const values = curry((o) => Object.values(o))
const fromPairs = (arr) => arr.reduce((o, el) => { o[el[0]] = el[1]; return o }, {})
const mapValues = curry((fn, a) => Object.keys(a).reduce((o, k) => { o[k] = fn(a[k], k); return o }, {}))
const pickBy = curry((fn, a) => Object.keys(a).reduce((o, k) => { if (fn(a[k], k)) o[k] = a[k]; return o }, {}))
const reduce = curry((fn, k, a) => a.length ? a.reduce(fn, k) : Object.keys(a).reduce((o, i) => fn(o, a[i], i), k))
const filter = curry((fn, args) => args.length ? args.filter(fn) : pickBy(fn, args))
const map = curry((fn, args) => args.length ? args.map(fn) : mapValues(fn, args))
const fromPath = curry((path) => path.replace('[', '.').replace(']', '').split('.'))
const get = curry((p, a) => (isArray(p) ? p : fromPath(p)).reduce((acc, o) => acc ? acc[o] : acc, a))
const set = curry((p, value, obj) => {
let i
let objClone = clone(obj)
let point = objClone
const path = isArray(p) ? p : fromPath(p)
for (i = 0; i < path.length - 1; i++) {
point[path[i]] = point[path[i]] || (isString(path[i + 1]) ? {} : [])
point = point[path[i]]
}
point[path[i]] = value
return objClone
})
console.log(
// fromPath('the.many[0].ways'),
chain(
set('the.many[5].ways', 'YO'),
get(['the', 'many', 5, 'ways'])
// get('the.many[5].ways')
)({})
)
// Example
// const addAll = curry((a, b) => a + b)
// const square = curry((n) => n * n)
// const a = chain(
// addAll(2),
// square
// )(2)
// console.log(a)
// const output = chain(
// map((x, i) => i),
// filter(x => x % 2)
// )(range(100))
// console.log(output)
// const obj = { a: 'foo', b: 'bar' }
// const arr = [ 'foo', 'bar' ]
// console.log(
// map(x => x + '-', obj),
// map(x => x + '-', arr)
// );
// console.log(
// chain(
// range,
// map((x) => ['_' + x + '_', 100 + x]),
// fromPairs,
// map((x, i) => i + 'what'),
// filter((x, i) => i !== '_5_'),
// reduce((acc, x, k) => acc + k, '')
// )(10)
// )
// console.log(isEmpty([0]))</script></body>
</html>
Raw
jsbin.tuxubuk.js
// jshint esnext: true
'use strict';
var curry = function curry(f) {
return function () {
for (var _len = arguments.length, a = Array(_len), _key = 0; _key < _len; _key++) {
a[_key] = arguments[_key];
}
return a.length < f.length ? curry(f.bind.apply(f, [undefined].concat(a))) : f.apply(undefined, a);
};
};
var clone = function clone(obj) {
return Object.assign({}, obj);
};
var chain = function chain() {
for (var _len2 = arguments.length, fs = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
fs[_key2] = arguments[_key2];
}
return function (a) {
return fs.reduce(function (o, f) {
return f(o);
}, a);
};
};
var isEmpty = curry(function (a) {
return !a || a === null || a === '' || Object.values(a).length === 0;
});
var isString = curry(function (a) {
return typeof a === 'string';
});
var isArray = curry(function (a) {
return Array.isArray(a);
});
var range = curry(function (size) {
return Array(size).fill(undefined).map(function (x, i) {
return i;
});
});
var keys = curry(function (o) {
return Object.keys(o);
});
var values = curry(function (o) {
return Object.values(o);
});
var fromPairs = function fromPairs(arr) {
return arr.reduce(function (o, el) {
o[el[0]] = el[1];return o;
}, {});
};
var mapValues = curry(function (fn, a) {
return Object.keys(a).reduce(function (o, k) {
o[k] = fn(a[k], k);return o;
}, {});
});
var pickBy = curry(function (fn, a) {
return Object.keys(a).reduce(function (o, k) {
if (fn(a[k], k)) o[k] = a[k];return o;
}, {});
});
var reduce = curry(function (fn, k, a) {
return a.length ? a.reduce(fn, k) : Object.keys(a).reduce(function (o, i) {
return fn(o, a[i], i);
}, k);
});
var filter = curry(function (fn, args) {
return args.length ? args.filter(fn) : pickBy(fn, args);
});
var map = curry(function (fn, args) {
return args.length ? args.map(fn) : mapValues(fn, args);
});
var fromPath = curry(function (path) {
return path.replace('[', '.').replace(']', '').split('.');
});
var get = curry(function (p, a) {
return (isArray(p) ? p : fromPath(p)).reduce(function (acc, o) {
return acc ? acc[o] : acc;
}, a);
});
var set = curry(function (p, value, obj) {
var i = undefined;
var objClone = clone(obj);
var point = objClone;
var path = isArray(p) ? p : fromPath(p);
for (i = 0; i < path.length - 1; i++) {
point[path[i]] = point[path[i]] || (isString(path[i + 1]) ? {} : []);
point = point[path[i]];
}
point[path[i]] = value;
return objClone;
});
console.log(
// fromPath('the.many[0].ways'),
chain(set('the.many[5].ways', 'YO'), get(['the', 'many', 5, 'ways'])
// get('the.many[5].ways')
)({}));
// Example
// const addAll = curry((a, b) => a + b)
// const square = curry((n) => n * n)
// const a = chain(
// addAll(2),
// square
// )(2)
// console.log(a)
// const output = chain(
// map((x, i) => i),
// filter(x => x % 2)
// )(range(100))
// console.log(output)
// const obj = { a: 'foo', b: 'bar' }
// const arr = [ 'foo', 'bar' ]
// console.log(
// map(x => x + '-', obj),
// map(x => x + '-', arr)
// );
// console.log(
// chain(
// range,
// map((x) => ['_' + x + '_', 100 + x]),
// fromPairs,
// map((x, i) => i + 'what'),
// filter((x, i) => i !== '_5_'),
// reduce((acc, x, k) => acc + k, '')
// )(10)
// )
// console.log(isEmpty([0]))
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