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node_modules/inspect-property/README.md
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node_modules/inspect-property/README.md
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# inspect-property
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[](https://travis-ci.org/DiegoZoracKy/inspect-property) []() []()
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Inspects a Property and returns useful informations about it (e.g. nested properties, function inspection, property descriptor, value, type, constructor)
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## Installation
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```bash
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npm install inspect-property
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```
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## Usage
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```javascript
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inspectProperty(o, propertyName, { delimiter = '.', inspectFunction = true, inspectProperties = true, enumerability, inherited} = {} );
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```
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**o**:
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Object || Property || Value to be inspected.
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**propertyName**:
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When passing as `inspectProperty(parentObject, 'childPropertyName')`, `propertyDescriptor` will be returned. Note that `childPropertyName` must be a `string`.
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**delimiter**
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What will be used as a delimiter for the nested properties at `properties` keys. Default is `','` e.g. `'a.b.c'`
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**inspectFunction**
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If functions should be inspected. See [inspect-function](https://github.com/DiegoZoracKy/inspect-function) for details about the function inspection.
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**inspectProperties**
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When set to false, `properties` will be a simple `{key: value}` object, without any inspection. The default value is `true`, returning `{key: inspectProperty(value)}`.
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**path**
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An array representing the current property path. e.g. from the above example it will be `[ 'a', 'b', 'c' ]` for the `'c'` property
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**parent**
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The parent object of the current property. e.g. from the above example it will be the object `{ c: 'cValue' }` for the `'c'` property
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**enumerability**:
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When inspecting nested properties, defines how it should look up regarding `enumerability`.
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The options are:
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* `'enumerable'` *(default)*
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* `'nonenumerable'`
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* `'all'`
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**inherited**:
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Determines if it should look up on the prototype chain when inspecting nested properties.
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The options are:
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* `true` *(default)*
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* `false`
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## Example
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```javascript
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const inspectProperty = require('../');
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const data = {
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a: {
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b: {
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c: (z = 'DefaultX', k) => z+k
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},
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d: 3,
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f: {
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g: 'h'
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}
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}
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};
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const result = inspectProperty(data);
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////////////
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// RESULT //
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////////////
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// Below is a JSON.stringify(result), so functions references are ommitted
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{
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"value": {
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"a": {
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"b": {},
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"d": 3,
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"f": {
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"g": "h"
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}
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}
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},
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"type": "object",
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"constructor": {
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"name": "Object"
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},
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"properties": {
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"a": {
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"value": {
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"b": {},
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"d": 3,
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"f": {
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"g": "h"
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}
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},
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"type": "object",
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"constructor": {
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"name": "Object"
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},
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"properties": {
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"b": {},
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"d": 3,
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"f": {
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"g": "h"
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},
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"f.g": "h"
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}
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},
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"a.b": {
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"value": {},
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"type": "object",
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"constructor": {
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"name": "Object"
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},
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"properties": {}
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},
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"a.b.c": {
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"type": "function",
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"constructor": {
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"name": "Function"
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},
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"functionInspection": {
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"name": "c",
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"signature": "c(z = 'DefaultX', k);",
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"parameters": [
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{
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"parameter": "z",
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"defaultValue": "DefaultX",
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"declaration": "z = 'DefaultX'"
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},
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{
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"parameter": "k",
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"declaration": "k"
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}
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],
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"parametersNames": [
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"z",
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"k"
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]
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},
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"properties": {}
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},
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"a.d": {
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"value": 3,
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"type": "number",
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"constructor": {
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"name": "Number"
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}
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},
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"a.f": {
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"value": {
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"g": "h"
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},
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"type": "object",
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"constructor": {
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"name": "Object"
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},
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"properties": {
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"g": "h"
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}
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},
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"a.f.g": {
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"value": "h",
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"type": "string",
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"constructor": {
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"name": "String"
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}
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}
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}
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}
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