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javascript function length

// The "function length" in JS evaluates to the number of it's params

const sum = (a, b) => a + b;
const log = (s) => console.log(s);
const noop = () => {};

console.log(sum.length);  // 2
console.log(log.length);  // 1
console.log(noop.length); // 0
Comment

js .length

var x = 'Mozilla';
var empty = '';

console.log('Mozilla is ' + x.length + ' code units long');
/* "Mozilla è lungo 7 unità di codice" */

console.log('La stringa vuota ha una lunghezza di
 ' + empty.length);
/* "La stringa vuota ha una lunghezza di 0" */
Comment

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