javascript 在javascript中将数组转换为字符串
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/11709086/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
convert array to string in javascript
提问by user1560820
I want the text to be printed without commas.
我希望文本打印时不带逗号。
<html>
<head>
<title>Reverse</title>
</head>
<body>
<form name="rev">
Enter the string : <input type="text" name="str"/>
<input type="button" value="click" onclick="rev1()" /><br>
reverse of given string : <input type="text" name="res"/>
</form>
<script type="text/JavaScript">
function rev1(){
var a=rev.str.value;
var b=[];
var i,j=0;
for(i=a.length-1;i>=0;i--){
b[j]=a[i];
j++
}
//rev.res.value=b;
alert(b);
}
</script>
</body>
</html>
If I give the input as abcI am getting an output as c,b,a, but I want it as cba.
如果我abc在获得输出时给出输入c,b,a，但我希望它作为cba.
回答by Esailija
Try this:
试试这个：
alert( b.join("") )
You could also reverse a string more easily by:
您还可以通过以下方式更轻松地反转字符串：
"hello".split("").reverse().join("")
//"olleh"
回答by Michael
You may reverse your string using javascript built-in functions:
<html> <head> <title>Reverse</title> </head> <body> <form name="rev"> Enter the string : <input type="text" name="str"/> <input type="button" value="click" onclick="rev1()" /><br> reverse of given string : <input type="text" name="res"/> </form> <script type="text/JavaScript"> function rev1(){ var a=rev.str.value; var b=a.split("").reverse().join(""); //rev.res.value=b; alert(b); } </script> </body> </html>You may also transfer join your array elements to become a string
<html> <head> <title>Reverse</title> </head> <body> <form name="rev"> Enter the string : <input type="text" name="str"/> <input type="button" value="click" onclick="rev1()" /><br> reverse of given string : <input type="text" name="res"/> </form> <script type="text/JavaScript"> function rev1(){ var a=rev.str.value; var b=[]; var i,j=0; for(i=a.length-1;i>=0;i--){ b[j]=a[i]; j++ } //rev.res.value=b; alert(b.join("")); } </script> </body> </html>
您可以使用 javascript 内置函数反转您的字符串：
<html> <head> <title>Reverse</title> </head> <body> <form name="rev"> Enter the string : <input type="text" name="str"/> <input type="button" value="click" onclick="rev1()" /><br> reverse of given string : <input type="text" name="res"/> </form> <script type="text/JavaScript"> function rev1(){ var a=rev.str.value; var b=a.split("").reverse().join(""); //rev.res.value=b; alert(b); } </script> </body> </html>你也可以将你的数组元素调用join变成一个字符串
<html> <head> <title>Reverse</title> </head> <body> <form name="rev"> Enter the string : <input type="text" name="str"/> <input type="button" value="click" onclick="rev1()" /><br> reverse of given string : <input type="text" name="res"/> </form> <script type="text/JavaScript"> function rev1(){ var a=rev.str.value; var b=[]; var i,j=0; for(i=a.length-1;i>=0;i--){ b[j]=a[i]; j++ } //rev.res.value=b; alert(b.join("")); } </script> </body> </html>
回答by abdul
You can also use document.getElementById().value.reverse().join("");
你也可以使用 document.getElementById().value.reverse().join("");
