Create a JSON walker api (nodejs/web) to walk through EcmaScript objects.
We frequently need to go deeply in objects and to have some information, such as the path, etc...
We have two usages: Walker and IterableWalker.
The first allows to define your own way to iterate.
The second could be used as an iterable.
function grabProperties(value) {
const properties = [];
const walker = new Walker(value);
let optionalWalkerMetadata;
do {
optionalWalkerMetadata = walker.nextStep();
if (optionalWalkerMetadata.isSome()) {
properties.push({
path: optionalWalkerMetadata.value.propertyPath.toString(),
type: optionalWalkerMetadata.value.propertyType,
value: optionalWalkerMetadata.value.propertyValue,
});
}
} while (optionalWalkerMetadata.isSome());
return properties;
}
const secondLevel = { label: 'foo' };
const array = [secondLevel];
const firstLevel = { records: array };
const actual = grabProperties(firstLevel);
/* actual content:
* [
{
path: 'records',
type: 'array',
value: [{ label: 'foo' }],
},
{
path: 'records[0]',
type: 'object',
value: { label: 'foo' },
},
{
path: 'records[0].label',
type: 'string',
value: 'foo',
},
]
*/function grabProperties(value) {
const properties = [];
const walker = new IterableWalker(value);
for (const value of walker) {
properties.push({
path: value.propertyPath.toString(),
type: value.propertyType,
value: value.propertyValue,
});
}
return properties;
}
const secondLevel = { label: 'foo' };
const array = [secondLevel];
const firstLevel = { records: array };
const actual = grabProperties(firstLevel);
/* actual content:
* [
{
path: 'records',
type: 'array',
value: [{ label: 'foo' }],
},
{
path: 'records[0]',
type: 'object',
value: { label: 'foo' },
},
{
path: 'records[0].label',
type: 'string',
value: 'foo',
},
]
*/npm run dev:build: Build the project over packagesnpm run dev:check: Run tests and styling over packagesnpm run dev:format: Format files over packagesnpm run dev:format:check: Check files format over packagesnpm run dev:linting: Lint files over packagesnpm run dev:styling: Format and lint files over packagesnpm run dev:publish: Publish all the packages on npm registrynpm test: Run tests over packagesnpm run test:coverage: Run tests over packages and see coverage reports