Published
Edited
Nov 15, 2018
Importers
2 stars
map = fn => arr => arr.map((x,i) => fn(x,i))
reduce = (fn, agg) => arr => arr.reduce(fn, agg)
pipe = (...fns) => data => reduce((d, fn) => fn(d),data)(fns)
filter = fn => arr => arr.filter(fn)
find = fn => arr => arr.find(fn)
pick = prop => obj => obj ? obj[prop] : null
pickEvery = field => map(pick(field))
split = delimiter => str => str.split(delimiter)
head = arr => arr[0]
tail = arr => {
const [head, ...tail] = arr
return tail
}
trim = str => str.trim()
splitNewLine = split('\n')
splitPipe = split('|')
toInt = pipe(trim, parseInt)
toFloat = pipe(trim, parseFloat)
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Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
