0,C,1,0,L2,L2
1,T,const obj = {};,0,空のオブジェクト宣言,js_empty_obj
2,T,const arr = [];,0,空の配列宣言,js_empty_arr
3,T,for (const item of array) {},0,For-ofループ,js_for_of_loop
4,T,for (const key in object) {},0,For-inループ,js_for_in_loop
5,T,switch (variable) { case 'value': break; default: break; },0,Switch文,js_switch_stmt