{"css":"","js":"function square(arr) {\n var new_arr = [];\n \n for(e of arr){\n new_arr.push(e*e);\n }\n \n return new_arr;\n}","html":"","libs":[]}
for of 可以遍历数组值
{"css":"","js":"function square(arr) {\n var new_arr = [];\n \n for(e of arr){\n new_arr.push(e*e);\n }\n \n return new_arr;\n}","html":"","libs":[]}
for of 可以遍历数组值