Array.prototype.upsert

Method .upsert() for Array of objects

.upsert(primaryKey, key, value)

where:

• primaryKey - Object {propertyKey: propertyValue}
• key - Object (for replace several properties) or String (for replace one property)
• value Any if key is String, and empty if key is Object

Install

For node

1. In Command line:

npm i array.prototype.upsert

2. In code:

require('array.prototype.upsert')

For browsers

<script src="array.upsert.js"></script>

Examples

const users = []

users.push({ id: 1, name: 'Alice', age: 30 })
users.push({ id: 2, name: 'Bob', age: 40 })

/**
 * Change Bob name 
 */
users.upsert({id: 2}, {name: 'Bobby'})
//[ { id: 1, name: 'Alice', age: 30 },
//  { id: 2, name: 'Bobby', age: 40 } ]

/**
 * Change Alice age 
 */
users.upsert({id: 1}, 'age', 35)
//[ { id: 1, name: 'Alice', age: 35 },
//  { id: 2, name: 'Bobby', age: 40 } ]

/**
 * Change Bob's ID
 */
users.upsert({id: 2}, {id: 5})
//[ { id: 1, name: 'Alice', age: 35 },
//  { id: 5, name: 'Bobby', age: 40 } ]

/**
 * Add a new person 
 */
users.upsert({id: 7}, { name: 'Elon', age: 50 })
//[ { id: 1, name: 'Alice', age: 35 },
//  { id: 5, name: 'Bobby', age: 40 },
//  { id: 7, name: 'Elon', age: 50 } ]

License

MIT

If useful

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