javascript

{
    ['j','a','v','a','s','c','r','i','p','t'].slice(0);        //['j','a','v','a','s','c','r','i','p','t']
    ['j','a','v','a','s','c','r','i','p','t'].slice(1);        //['a','v','a','s','c','r','i','p','t']
    ['j','a','v','a','s','c','r','i','p','t'].slice(2);        //['v','a','s','c','r','i','p','t']
    ['j','a','v','a','s','c','r','i','p','t'].slice(0, 1);     //['j']
    ['j','a','v','a','s','c','r','i','p','t'].slice(1, 2);     //['a']
    ['j','a','v','a','s','c','r','i','p','t'].slice(0, 2);     //['j', 'a']
    ['j','a','v','a','s','c','r','i','p','t'].slice(0, 3);     //['j', 'a', 'v']
    ['j','a','v','a','s','c','r','i','p','t'].slice(5, 10);    //['c', 'r', 'i', 'p', 't']
    ['j','a','v','a','s','c','r','i','p','t'].slice(5, -1);    //['c', 'r', 'i', 'p']
    ['j','a','v','a','s','c','r','i','p','t'].slice(5, -2);    //['c', 'r', 'i']
    ['j','a','v','a','s','c','r','i','p','t'].slice(-1);       //['t']
    ['j','a','v','a','s','c','r','i','p','t'].slice(-2);       //['p','t']
    ['j','a','v','a','s','c','r','i','p','t'].slice(-3);       //['i','p','t']
    ['j','a','v','a','s','c','r','i','p','t'].slice(-3, -1);   //['i','p']
    ['j','a','v','a','s','c','r','i','p','t'].slice(-3, -2);   //['i']
}

{
    const arrNum1 = [100, 200, 300, 400, 500];
    const result1 = arrNum1.splice(1);

    // console.log(result1);    //[200, 300, 400, 500]
    // console.log(arrNum1);    //[100]

    const arrNum2 = [100, 200, 300, 400, 500];
    const result2 = arrNum2.splice(1, 2);

    // console.log(result2);   //[200, 300]
    // console.log(arrNum2);   //[100, 400, 500]

    const arrNum3 = [100, 200, 300, 400, 500];
    const result3 = arrNum3.splice(1, 4);

    // console.log(result3);   //[200, 300, 400, 500]
    // console.log(arrNum3);   //[100]

    const arrNum4 = [100, 200, 300, 400, 500];
    const result4 = arrNum4.splice(1, 2, "javascript");

    // console.log(result4);   //[200, 300]
    // console.log(arrNum4);   //[100, "javascript, 400, 500]

    const arrNum5 = [100, 200, 300, 400, 500];
    const result5 = arrNum5.splice(1, 0, "javascript");

    // console.log(result5);   //[]
    // console.log(arrNum5);   //[100, "javascript", 200, 300, 400, 500]

    const arrNum6 = [100, 200, 300, 400, 500];
    const result6 = arrNum6.splice(0, 4, "javascript");

    // console.log(result6);   //[100, 200, 300, 400]
    // console.log(arrNum6);   //["javascript", 500]

    const arrNum7 = [100, 200, 300, 400, 500];
    const result7 = arrNum7.splice(2, 2, "javascript", "react");

    // console.log(result7);   //[300, 400]
    // console.log(arrNum7);   //[100, 200, "javascript", "react", 500]

    const arrNum8 = [100, 200, 300, 400, 500];
    const result8 = arrNum8.splice(-2, 2, "javascript");

    // console.log(result8);   //[400, 500]
    // console.log(arrNum8);   //[100, 200, 300, "javascript"]
}