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# Length Arrays have a property called length, and it's pretty much exactly as it sounds, it's the length of the array. ~~~ var array = [1 , 2, 3]; // Result: l = 3 var l = array.length; ~~~ Exercise Define the variable a to be the number value of the length of the array ~~~ var array = [1, 1, 2, 3, 5, 8]; var l = array.length; var a = ~~~