Answers for "js count matchin property values in array of objects"

js obj getting count of properties

let count = 0;
for (let k in myobj) if (myobj.hasOwnProperty(k)) count++;

Posted by: Guest on November-16-2019

javascript count number of occurrences in array of objects

var result = array.reduce( (acc, o) => (acc[o.name] = (acc[o.name] || 0)+1, acc), {} );

Posted by: Guest on October-28-2020

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