How to Splice array in Javascript without returning reversed data -

i'm new javascript. have array:

var test = [     {data1},     {data2},     {data3},     {data4},     {data5} ]; 

so did is

var test1 = []; while(test.lenght){     test1.push(test.splice(0-2)); } 

but result is

test1[0] = [{data4},{data5}]; test1[1] = [{data2},{data3}]; test1[2] = [{data1}]; 

i want splice this

test1[0] = [{data1},{data2}]; test1[1] = [{data3},{data4}]; test1[2] = [{data5}]; 

how can achieve this?

update array#splice method arguments 0 , 2 removing first 2 elements.

var test = [    'data1',    'data2',    'data3',    'data4',    'data5'  ];    var test1 = [];  while (test.length) {    test1.push(test.splice(0, 2));  }    console.log(test1)

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update : if don't want update original array use array#slice method.

var test = [    'data1',    'data2',    'data3',    'data4',    'data5'  ];    var test1 = [];  (var = 0, count = math.ceil(test.length / 2); < count; i++) {    test1.push(test.slice(i * 2, * 2 + 2));  }    console.log(test1)    // or alternate method updated loop conditions    var test2 = [];  (var = 0; < test.length; += 2) {    test2.push(test.slice(i, + 2));  }    console.log(test2)