each-props
Advanced tools
Processes each properties of an object deeply.
To install from npm:
$ npm i each-props --save
Apply a function to all (non plain object) properties.
const eachProps = require('each-props');
var obj = { a: 1, b: { c: 'CCC', d: { e: 'EEE' } } };
eachProps(obj, function (value, keyChain, nodeInfo) {
if (keyChain === 'a') {
nodeInfo.parent['a'] = value * 2;
} else if (keyChain === 'b.c') {
nodeInfo.parent['c'] = value.toLowerCase();
} else if (keyChain === 'b.d') {
return true; // stop to dig
} else if (keyChain === 'b.d.e') {
nodeInfo.parent['e'] = value.toLowerCase();
}
});
console.log(obj);
// => { a: 2, b: { c: 'ccc', d: { e: 'EEE' } } };
Executes the fn function for all properties.
| Parameter | Type | Description |
|---|---|---|
| obj | object | A plain object to be treated. |
| fn | function | A function to operate each properties. |
| opts | object | An object to pass any data to each properties. |
API of fn function
This function is applied to all properties in an object.
| Parameter | Type | Description |
|---|---|---|
| value | any | A property value. |
| keyChain | string | A string concatenating the hierarchical keys with dots. |
| nodeInfo | object | An object which contains node informations (See below). |
True, if stops digging child properties.
Type: boolean
| Properties | Type | Description |
|---|---|---|
| name | string | The property name of this node. |
| index | number | The index of the property among the sibling properties. |
| count | number | The count of the sibling properties. |
| depth | number | The depth of the property. |
| parent | object | The parent node of the property. |
| sort | function | A sort function which orders the child properties. This function is inherited from opts, if be specified. |
... and any properties inherited from opts.
| Properties | Type | Description |
|---|---|---|
| sort | function | A sort function which orders the same level properties. (Optional) |
... and any properties you want to pass to each node.
MIT
FAQs
Processes each properties of an object deeply.
The npm package each-props receives a total of 1,071,773 weekly downloads. As such, each-props popularity was classified as popular.
We found that each-props demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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