var colors = ["red","blue","car","green"];
var carIndex = colors.indexOf("car");//get "car" index
//remove car from the colors array
colors.splice(carIndex, 1); // colors = ["red","blue","green"]
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eliminar elemento del array js
var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.pop();
// Removes the last element ("Mango") from fruits