0889ee9117
feat(hooks): add useLiveStream generic WebSocket hook - supports websocket/sse/polling transports - exponential backoff reconnect with jitter - circular buffer with configurable size - typed filter callback per use case - manual disconnect + reconnect + error state feat(hooks): add useLiveMetrics derived hook - sliding time-window cut - moving average (configurable window) - current / avg / min / max / ratePerSecond - zero allocations per tick (memoized) feat(charts): add LiveMetricChart molecule (Recharts) - line + area variants, grid + tooltip - moving-average overlay (dashed) - ConnectionStatus atom in header - status bar + compact mode - 100% responsive, GPU via SVG ViewBox feat(atoms): add ConnectionStatus indicator - 5 states: disconnected/connecting/connected/reconnecting/error - animated pulse, JetBrains Mono, pill style - exported helpers: formatLatency / formatBytes docs(pkg): bump v0.1.0 → v0.2.0, add recharts peerDep
pathval
Tool for Object value retrieval given a string path for node and the browser.
What is pathval?
Pathval is a module which you can use to retrieve or set an Object's property for a given String path.
Installation
Node.js
pathval is available on npm. To install it, type:
$ npm install pathval
Browsers
You can also use it within the browser; install via npm and use the pathval.js file found within the download. For example:
<script src="./node_modules/pathval/pathval.js"></script>
Usage
The primary export of pathval is an object which has the following methods:
hasProperty(object, name)- Checks whether anobjecthasnamed property or numeric array index.getPathInfo(object, path)- Returns an object with info indicating the value of theparentof that path, thenameof the property we're retrieving and itsvalue.getPathValue(object, path)- Retrieves the value of a property at a givenpathinside anobject'.setPathValue(object, path, value)- Sets thevalueof a property at a givenpathinside anobjectand returns the object in which the property has been set.
var pathval = require('pathval');
.hasProperty(object, name)
var pathval = require('pathval');
var obj = { prop: 'a value' };
pathval.hasProperty(obj, 'prop'); // true
.getPathInfo(object, path)
var pathval = require('pathval');
var obj = { earth: { country: 'Brazil' } };
pathval.getPathInfo(obj, 'earth.country'); // { parent: { country: 'Brazil' }, name: 'country', value: 'Brazil', exists: true }
.getPathValue(object, path)
var pathval = require('pathval');
var obj = { earth: { country: 'Brazil' } };
pathval.getPathValue(obj, 'earth.country'); // 'Brazil'
.setPathValue(object, path, value)
var pathval = require('pathval');
var obj = { earth: { country: 'Brazil' } };
pathval.setPathValue(obj, 'earth.country', 'USA');
obj.earth.country; // 'USA'