Mit ér egy weboldal kereső nélkül? A ReactJS gyorstalpaló ezen leckéjében kereső készítésre vállalkozunk, amihez state-eket fogunk használni.
A JavaScript filter() függvény pontosan azt csinálja, amire a neve is utal: szűri a tömb elemeit, valamilyen feltétel alapján.
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