var ar = ['zero', 'one', 'two', 'three'];ar.shift(); // returns "zero"console.log( ar ); // ["one", "two", "three"]

var colors=["red","green","blue","yellow"];

//loop back-words through array when removing items like so:

for (var i = colors.length - 1; i >= 0; i--) {

    if (colors[i] === "green" || colors[i] === "blue") { 

        colors.splice(i, 1);

    }

}

//colors is now  ["red", "yellow"]

const nums = [1, 2, 3, 4, 5, 6];

const remove = [1, 2, 4, 6];

​

function removeFromArray(original, remove) {

  return original.filter(value => !remove.includes(value));

}

const colors=["red","green","blue","yellow"];

let index = colors.length - 1;

while (index >= 0) {

    if (['green', 'blue'].indexOf(colors[index]) > (-1)) {

        colors.splice(index, 1);

    }

    index -= 1;

}

const removeFromArray = function (array, ...items) {

    let remove = [...items];

    return array.filter(value => !remove.includes(value));

var array = [1, 2, 3, 4];var evens = _.remove(array, function(n) { return n % 2 === 0;});console.log(array);// => [1, 3]console.log(evens);// => [2, 4]

var ar = [1, 2, 3, 4, 5, 6];ar.pop(); // returns 6console.log( ar ); // [1, 2, 3, 4, 5]

var ar = [1, 2, 3, 4, 5, 6];ar.length = 4; // set length to remove elementsconsole.log( ar ); // [1, 2, 3, 4]

var arr1 = [1, 2, 3, 4, 5, 6];var arr2 = arr1; // Reference arr1 by another variable arr1 = [];console.log(arr2); // Output [1, 2, 3, 4, 5, 6]