In my code, there are two arrays of JSONs: one named products and another called deletedProducts.
The task is to filter out the products that are not present in the deletedProducts array.
For instance:
products = [
{
id: 1,
name: 'Box'
},
{
id: 2,
name: 'Lamp'
}
]
deletedProducts = [
{
id: 1,
name: 'Box'
}
]
The filtered result would look like this:
result = [
{
id: 2,
name: 'Lamp'
}
]
Here is a solution using the filter and find methods:
let result = products.filter(prod => {
return !deletedProducts.find(dprod => {
return dprod.id === prod.id;
})
})
let products = [{
id: 1,
name: 'Table'
},
{
id: 2,
name: 'Chair'
}
]
let deletedProducts = [{
id: 1,
name: 'Table'
}]
let result = products.filter(prod => {
return !deletedProducts.find(dprod => {
return dprod.id === prod.id;
})
})
console.log(result)Check out this comparison function and filtering method. (referencing an array based on element "id" in this example)
let items = [
{
id: 1,
name: 'Chair'
},
{
id: 2,
name: 'Table'
}
]
let removedItems = [
{
id: 1,
name: 'Chair'
}
]
function compareArrays(secondaryArray){
return function (current) {
return secondaryArray.filter(function(item) {
return item.id === current.id
}).length===0;
}
}
var results=items.filter(compareArrays(removedItems));
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