javascript how to print

Javascript print output method: 1. Print output through "window.alert('pop-up window debugging');" method; 2. Print output through "console.table(ars);" method.

The operating environment of this article: Windows 7 system, JavaScript version 1.8.5, DELL G3 computer.

Pop-up window debugging, the code is as follows:

<script>
window.alert(&#39;弹出窗口调试&#39;);
</script>

F12 debugging area, the code is as follows:

<script>
console.log(&#39;调试区&#39;);
</script>

It is very useful when printing complex arrays. The code is as follows:

<script>
var ars = [&#39;d&#39;,&#39;s&#39;,&#39;ee&#39;];
console.table(ars);
</script>

[Recommended learning: js basic tutorial]

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