Js tlačiť na začiatok poľa
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js tlačiť na začiatok poľa
var colors = ["white","blue"];
colors.unshift("red"); //add red to beginning of colors
// colors = ["red","white","blue"]škálu.unshift v JavaScripte
//The unshift() method adds one or more elements to the beginning of an array
//and returns the new length of the array.
const array1 = [1, 2, 3];
console.log(array1.unshift(4, 5));
// expected output: 5
console.log(array1);
// expected output: Array [4, 5, 1, 2, 3]metóda unshift v JavaScripte
var name = [ "john" ];
name.unshift( "charlie" );
name.unshift( "joseph", "Jane" );
console.log(name);
//Output will be
[" joseph "," Jane ", " charlie ", " john "]Podobné stránky
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