Reshape data rows into partitioned summary values and collections, using a JSON-based template
npm install partjsonReshape data rows into partitioned summary values and collections, using a JSON-based template.
https://siosonel.github.io/partjson/
``bash
$ npm install -g partjson
$ printf "key,val,type\nA,2,cat\nB,3,cat\nA,5,dog" | partjson '{"$key":{"total":"+$val","$type":"+$val"}}'
{
"A": {
"total": 7,
"cat": 2,
"dog": 5
},
"B": {
"total": 3,
"cat": 3
}
}
`
javascript
import Partjson from 'partjson'const pj = new Partjson({
template: {
"$key":{
total: "+$val",
byType: {
"$type": "+$val"
}
}
}
})
pj.add([
{key: "A", val: 2, type: "cat"},
{key: "B", val: 3, type: "cat"},
{key: "A", val: 5, type: "dog"}
])
console.log(pj.tree)
/*
{
"A": {
"total": 7,
"byType": {
"cat": 2,
"dog": 5
}
},
"B": {
"total": 3,
"byType": {
"cat": 3
}
}
}
*/
`Develop
Clone this repository and install its dependencies:
bash
git clone git@github.com:siosonel/partjson.git
cd partjson
npm install
` builds the library, then keeps rebuilding it whenever the source files change using rollup-watch.npm test tests the umd build.npm run prettify runs prettify and npm test.npm run report runs creates a coverage report in ./coverage/index.html.npm run build outputs the library to dist` in cjs (for Node), esm (for import), and umd (for browser script).MIT.