How to output string array in javascript

Javascript method of outputting string array: 1. Output through "for(var key in arr){...}"; 2. Through "for(var i=0;i

The operating environment of this article: windows7 system, javascript version 1.8.5, Dell G3 computer.

How to output string array in javascript?

In JavaScript, you can traverse the array through a loop, and use the document.writeln(arr) method to output the array in the loop.

Traverse javascript arrays in two ways:

The first one:

<script language="javascript" type="text/javascript">
var str = "how are you today";
var arr = str.split(" ");
for(var key in arr){
 document.writeln(arr[key]);
}
</script>

The second one (mainly using this method):

<script language="javascript" type="text/javascript">
var str = "how are you today";
var arr = str.split(" ");
for(var i=0;i<arr.length;i++){
 document.writeln(arr[i]);
}
</script>

【 Recommended: javascript advanced tutorial】

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