使用Javascript删除$ sign后的所有字符

Question

I want to remove all the characters that appear after "$" sign in my string using javascript.

Is there any function in javascript which can help me achieve this. I am quite new to client side scripting.

Thanks.

Answer 1

How about this

astr.split("$")[0];

NB This will get you all of the characters up to the $ . If you want that character too you will have to append it to this result.

Answer 2

You can try this regex, it will replace the first occurance of $ and everything after it with a $ .

str.replace(/\$.*/, '$');

Input: I have $100
Output: I have $

Answer 3

there are a few different ways

var myStr = "asdasrasdasd$hdghdfgsdfgf";
myStr = myStr.split("$")[0];

Or

var myStr = "asdasrasdasd$hdghdfgsdfgf";
myStr = myStr.substring(0, myStr.indexOf("$") - 1);

Answer 4

您需要获取子字符串并传递$的索引作为它的第二个参数。

var newString = oldString.substring(0, oldString.indexOf("$", 0))

Answer 5

Use the subtring and indexOf methods like so:

var someString = "12345$67890";
alert(someString.substring(0, someString.indexOf('$')));

jsFiddle example

Answer 6

Use .split() to break it up at the dollar signs and then grab the first chunk:

var oldstring = "my epic string $ more stuff";
var split = oldstring.split("$");
var newstring = split[0] + "$";
alert(newstring); //outputs "my epic string $"

Answer 7

正则表达式非常有用：

/([^$]*\$?)/.exec("aa$bc")[1] === "aa$"