Illustration of Frequency Count
[
{ language: 'JavaScript' },{ language: 'JavaScript' },{ language: 'TypeScript' },
]
CONVERSION TO =
[
{ language: 'JavaScript', count: 2 },
{ language: 'C++', count: 1 },
{ language: 'TypeScript', count: 1 }
]
The concept is to tally the occurrences of each unique key in an array of objects and then present the result as an array of objects. This format enables seamless rendering in frameworks like React.JS.
[ { key1: 2 }, { key2: 1 }, { key3: 7 } ]
Utilize the following code snippet to achieve your desired outcome. This code is applicable to all input scenarios where you need to provide an array along with the property name used for count calculation.
const superAob = (data, victim) => {
const obj = {};
data.forEach((data) => {
if(data.hasOwnProperty(victim)){
if(obj[data[victim]]){
obj[data[victim]]++;
}
else{
obj[data[victim]] = 1;
}
}
})
let superArrayOfObjects = [];
for (const key in obj) {
superArrayOfObjects = [...superArrayOfObjects, { victim: key, count: obj[key]}];
}
return superArrayOfObjects;
}
let aob =
[
{ framework: 'React.JS', website: 'Paypal' },
{ framework: 'React.JS', website: 'Tesla' },
{ framework: 'Angular', website: 'Google' },
{ framework: 'Vue.JS', website: 'Vue' },
{ framework: 'JavaScript', website: 'inblack67' },
]
console.log(superAob(aob, 'framework'));
aob =
[
{ language: 'JavaScript' },{ language: 'JavaScript' },{ language: 'TypeScript' },
]
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