I am trying to compare 2 objects by their property and the values Strictly using forloop. If the value of the "name" or another property matches up with each other, I want to push the property and value to value3.
Once value3 is logged, I want the response like this:
{
name: 'dog',
surname: 'good',
skills: 'programming',
age: '22'
},
{
name: 'cat',
surname: 'soft',
skills: 'engineer'
age: '12'
},
{
name: 'elephant',
surname: 'big',
skills: 'programming'
age: '23'
}
Here is the code:
var values1 = [
{
name: 'dog',
surname: 'good',
skills: 'programming'
},
{
name: 'cat',
surname: 'soft',
skills: 'engineer'
},
{
name: 'elephant',
surname: 'big',
skills: 'programming'
}
]
var values2 = [
{
name: 'cat',
food: 'fish',
age: '12'
},
{
name: 'elephant',
food: 'leafs',
age: '13'
},
{
lastname: 'dog',
food: 'treats',
age: '22'
}
]
// push into this empty object array
var values3 = [{}]
console.log(values3)
The most generic approach which fulfills all of the OP's requirements should be based on Array.prototype.reduce. Its advantage comes with utilizing the additionally passed optional initial value as kind of configurable collector/accumulator object which will carry all the needed additional information / functions / result. Thus one can provide a reusable function with a customizable context/environment which one can adapt to ones needs.
var values1 = [{
name: 'dog',
surname: 'good',
skills: 'programming',
}, {
name: 'cat',
surname: 'soft',
skills: 'engineer',
}, {
name: 'elephant',
surname: 'big',
skills: 'programming',
}];
var values2 = [{
name: 'cat',
food: 'fish',
age: '12'
}, {
name: 'elephant',
food: 'leafs',
age: '13'
}, {
lastname: 'dog',
food: 'treats',
age: '22'
}];
function mergeItemsOfSameEntry(collector, item) {
const {
getSameEntryValue,
getMergeSubType,
comparisonItems,
result
} = collector;
const itemValue = getSameEntryValue(item);
const comparisonItem = comparisonItems
.find(cItem => getSameEntryValue(cItem) === itemValue);
if (comparisonItem !== null) {
result.push({
...item,
...getMergeSubType(comparisonItem),
});
}
return collector;
}
const values3 = values1.reduce(mergeItemsOfSameEntry, {
getSameEntryValue: item => item.name ?? item.lastname,
getMergeSubType: ({ age }) => ({ age }),
comparisonItems: values2,
result: [],
}).result;
console.log({ values3 });.as-console-wrapper { min-height: 100%!important; top: 0; }If you just want the key and value pair, you can do something like this:
var values1 = [
{
name: 'dog',
surname: 'good',
skills: 'programming'
},
{
name: 'cat',
surname: 'soft',
skills: 'engineer'
},
{
name: 'elephant',
surname: 'big',
skills: 'programming'
}
]
var values2 = [
{
name: 'cat',
food: 'fish',
age: '12'
},
{
name: 'elephant',
food: 'leafs',
age: '13'
},
{
lastname: 'dog',
food: 'treats',
age: '22'
}
]
// push into this empty object array
var values3 = [];
values1.forEach(eachValue1Obj => {
const keys = Object.keys(eachValue1Obj);
keys.forEach(eachKey => {
values2.forEach(eachValue2Obj => {
if (
eachValue1Obj[eachKey] &&
eachValue2Obj[eachKey] &&
eachValue1Obj[eachKey] === eachValue2Obj[eachKey]
) {
const x = {
key: eachKey,
value: eachValue1Obj[eachKey]
};
values3.push(x)
}
})
})
})
console.log('Values 3 Array ==>', values3);