JavaScript 数组操作

function transpose_2d_array(arr) {

var transpose_colnum = arr.length;

var transpose_rownum = arr.at(0).length;

var transpos搭建商城点我wcqh.cne_arr = [];

for (var i=0; i<transpose_rownum i const col=”array.from({” length: transpose_colnum> 0);

transpose_arr.push(col);

}

for (var i=0; i<arr.length i for j=”0;” transpose_arr arr return><p><strong>打印数组的形状</strong><br></p>

<pre class=”brush:php;toolbar:false”>async function recur_func(arr) {

if (ar搭建商城点我wcqh.cnr != undefined) {

return [arr[0], arr.length];

} else {

return arr;

}

}

async function shape(arr) {

var out = await recur_func(arr);

var shap = [out[1]];

var c = 0; // typically work with 4D arrays or less

while (out != undefined &amp;&amp; c

<p>我希望这些数组实用函数对某人有所帮助。 </p>

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