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Eduard Reichenberger
Programmer!
The simplest way would be to first filter the array then map it. Here is the code:
ArrayOfObj.filter((obj) => obj.age == 30).map((obj) => obj.name)
or
ArrayOfObj.filter(function(obj) { return obj.age == 30}).map(function(obj) { return obj.name})
Maneesh Kumar
Full Stack Developer
I also found this. ArrayOfObj.map(element => { if (element.age === 30) { return element.lastname; } }).filter(notUndefined => notUndefined !== undefined);