map-recursive
Transform object to other form, recursively.
This package has no dependency.
declare function mapRecursiveLeaf(
o: object,
callback?: (
value: boolean | number | string,
key?: boolean | number | string,
parent?: object
) => any
): object; o: The object to transform.callback(optional): The function to process each item against.callbackwill be invoked for leaf nodes only. The returned value is added to new object.value: The current value being processed in the object.key(optional): The key of the current value being processed in the object.parent(optional): The parent of the current value being processed in the object.
A new object with each value being the result of the callback function.
const mapRecursive = require('map-recursive');
mapRecursive.mapRecursiveLeaf(
{a: 1, b: 2, c: 3,},
v => v * 10
); // == {a: 10, b: 20, c: 30,}
mapRecursive.mapRecursiveLeaf(
{a: {b: 1, c: [3, {d: 4, e: 5,}, 6], f: 7},},
v => v * 10
); // === {a: {b: 10, c: [30, {d: 40, e: 50,}, 60], f: 70},}declare function mapRecursiveKey(
o: object,
callback?: (
key: boolean | number | string,
value?: object,
parent?: object
) => boolean | number | string
): object; o: The object to transform.callback(optional): The function to process each item against.callbackwill be invoked for internal nodes only. The returned key is added to new object.key: The key of the current value being processed in the object.value(optional): The current value being processed in the object.parent(optional): The parent of the current value being processed in the object.
A new object with each key being the result of the callback function.
const mapRecursive = require('map-recursive');
mapRecursive.mapRecursiveKey(
{a: {b: 1, c: [3, {d: 4, e: 5,}, 6], f: 7},},
v => v + v
); // === {aa: {bb: 1, cc: [3, {dd: 4, ee: 5,}, 6], ff: 7},},
mapRecursive.mapRecursiveKey(
{"@id": "id", name: "name", "@some": "some",},
v => v.replace(/^@/, "")
); // === {id: "id", name: "name", some: "some",},declare function mapRecursive(
o: object,
callback?: (
value: any,
key?: boolean | number | string,
parent?: object
) => any,
key?: boolean | number | string,
parent?: object
): object; o: The object to transform.callback(optional): The function to process each item against.callbackwill be invoked for all nodes. The returned value is added to new object.value: The current value being processed in the object.key(optional): The key of the current value being processed in the object.parent(optional): The parent of the current value being processed in the object.
key(optional): for internal use.parent(optional): for internal use.
A new object with each value being the result of the callback function.
const mapRecursive = require('map-recursive');
const convertObjectOnlyHaveAtIdToString = v => {
if (typeof v !== 'object')
return v;
const keys = Object.keys(v);
if (keys.length !== 1)
return v;
if (keys[0] !== '@id')
return v;
return v['@id'];
};
mapRecursive.mapRecursive(
{a: {"@id": "id"}},
convertObjectOnlyHaveAtIdToString
); // === {a: "id"}
mapRecursive.mapRecursive(
{
"@id": "http://schema.org/preparation",
"@type": "rdf:Property",
"http://schema.org/domainIncludes": {
"@id": "http://schema.org/MedicalProcedure"
},
"http://schema.org/isPartOf": {
"@id": "http://health-lifesci.schema.org"
},
"http://schema.org/rangeIncludes": [
{
"@id": "http://schema.org/Text"
},
{
"@id": "http://schema.org/MedicalEntity"
}
],
"rdfs:comment": "Typical preparation that a patient must undergo before having the procedure performed.",
"rdfs:label": "preparation"
},
convertObjectOnlyHaveAtIdToString
); /* ===
{
"@id": "http://schema.org/preparation",
"@type": "rdf:Property",
"http://schema.org/domainIncludes": "http://schema.org/MedicalProcedure",
"http://schema.org/isPartOf": "http://health-lifesci.schema.org",
"http://schema.org/rangeIncludes": [
"http://schema.org/Text",
"http://schema.org/MedicalEntity"
],
"rdfs:comment": "Typical preparation that a patient must undergo before having the procedure performed.",
"rdfs:label": "preparation"
}
*/