删除字符串中出现在特定字符之后的字符

Question

In Google Apps Script, I'm attempting to remove all characters from a string that appear after a specific character.

When I perform Logger.log(data) I get this:

[17-12-14 19:31:55:251 GMT] 
[17-12-14 19:31:55:252 GMT] ID
[17-12-14 19:31:55:253 GMT] 11111||q467jeX
[17-12-14 19:31:55:254 GMT] undefined
[17-12-14 19:31:55:255 GMT] 
[17-12-14 19:31:55:256 GMT] ID
[17-12-14 19:31:55:257 GMT] undefined
[17-12-14 19:31:55:258 GMT] 22222||K6OmenP
[17-12-14 19:31:55:259 GMT] 

I would like to remove all characters that come after "|", so that "data" looks like:

[17-12-14 19:31:55:251 GMT] 
[17-12-14 19:31:55:252 GMT] ID
[17-12-14 19:31:55:253 GMT] 11111
[17-12-14 19:31:55:254 GMT] undefined
[17-12-14 19:31:55:255 GMT] 
[17-12-14 19:31:55:256 GMT] ID
[17-12-14 19:31:55:257 GMT] undefined
[17-12-14 19:31:55:258 GMT] 22222
[17-12-14 19:31:55:259 GMT] 

I've tried using .split, .map and .subString methods, but I must be doing something wrong. Does anyone know the best way to do this?

Answer 1

You can use JavaScript String split() Method

var text = "22222||K6OmenP";
var data = text.split("|")[0];
Logger.log(data);

Answer 2

.indexOf is the method you are looking for. Do a x.substring(0,x.indexOf('|'));

Answer 3

If this is a string in Javascript (the question is tagged javascript) you should be able to achieve your wanted result with a simple regex :

const subject = `[17-12-14 19:31:55:251 GMT] 
[17-12-14 19:31:55:252 GMT] ID
[17-12-14 19:31:55:253 GMT] 11111||q467jeX
[17-12-14 19:31:55:254 GMT] undefined
[17-12-14 19:31:55:255 GMT] 
[17-12-14 19:31:55:256 GMT] ID
[17-12-14 19:31:55:257 GMT] undefined
[17-12-14 19:31:55:258 GMT] 22222||K6OmenP
[17-12-14 19:31:55:259 GMT]
`;

const result = subject.replace(/(\|.*)$/gm, '');

Answer 4

You must be doing console.log(str) or Logger.log(str)

So try just replacing that str with String(str).subString(0, String(str).indexOf('|'))

Thanks.