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import flat from 'flat'
import { DELIMITER } from './constants.js'
import { FlattenParams } from './flat.types.js'
import { propertyKeyRegex } from './property-key-regex.js'
import { pathToParts } from './path-to-parts.js'
const isObject = (value: any): boolean => {
// Node environment
if (typeof File === 'undefined') {
return typeof value === 'object' && value !== null
}
// Window environment
return typeof value === 'object' && !(value instanceof File) && value !== null
}
/**
* @load ./set.doc.md
* @memberof module:flat
* @param {FlattenParams} params
* @param {string} propertyPath
* @param {any} [value] if not give function will only try to remove old keys
* @returns {FlattenParams}
*/
const set = (params: FlattenParams = {}, propertyPath: string, value?: any): FlattenParams => {
const regex = propertyKeyRegex(propertyPath)
// remove all existing keys
const paramsCopy = Object.keys(params)
.filter((key) => !key.match(regex))
.reduce((memo, key) => {
memo[key] = params[key]
return memo
}, {} as FlattenParams)
if (typeof value !== 'undefined') {
if (isObject(value) && !(value instanceof Date)) {
const flattened = flat.flatten(value) as any
if (Object.keys(flattened).length) {
Object.keys(flattened).forEach((key) => {
paramsCopy[`${propertyPath}${DELIMITER}${key}`] = flattened[key]
})
} else if (Array.isArray(value)) {
paramsCopy[propertyPath] = []
} else {
paramsCopy[propertyPath] = {}
}
} else {
paramsCopy[propertyPath] = value
}
// when user gave { "nested.value": "something" } and had "nested" set to `null`, then
// nested should be removed
const parts = pathToParts(propertyPath).slice(0, -1)
if (parts.length) {
return Object.keys(paramsCopy)
.filter((key) => !parts.includes(key))
.reduce((memo, key) => {
memo[key] = paramsCopy[key]
return memo
}, {} as FlattenParams)
}
}
return paramsCopy
}
export { set }
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