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Estoy confundido con declarar una variable let, cierre, funciones y entorno léxico en JS

Mi profe me proporcionó el siguiente código:

 function makeCounter() { let count = 0; return function() { return count++; }; } let counter = makeCounter(); alert( counter() ); // 0 alert( counter() ); // 1 alert( counter() ); // 2

Sé que se está llamando a counter(). Pero no veo ninguna función nombrada como contador. ¿Alguien podría triturar algunas luces?

about 4 years ago · Juan Pablo Isaza
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