Remove all the characters after $ sign using Javascript

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开发者_如何学Python new to client side scripting.

Thanks.

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.

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 $

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);

You need to get the substring and pass the index of the $ as it's second parameter.

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

Use the subtring and indexOf methods like so:

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

jsFiddle example

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 $"

Regular expressions are very helpful:

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