I want to duplicate array with same elements that contains the first array For example, I have this array
let array1 = [{title: "test1"}, {title: "Test2"}, {title: "test3"}];
I need to transform it into
array1 = [{title: "test1"}, {title: "Test2"}, {title: "test3"}, {title: "test1"}, {title: "Test2"}, {title: "test3"}];
Thanks a lot.
try to concat, like:
let array1 = [{title: "test1"}, {title: "Test2"}, {title: "test3"}];
array1 = array1.concat(array1);
I am not sure what you are trying to achieve, but here's a solution.
let array1 = [{title: "test1"}, {title: "Test2"}, {title: "test3"}];
array1 = [ ...array1, ...array1]
You can also achieve it with a little for loop :)
let arr = [1, 2, 3] ;
let new_array = [] ;
for(let i = 0 ; i < 2 ; i++) {
new_array = new_array.concat(arr) ;
}
console.log(new_array) ;