Javascript: Find string in first few letters

Question

I would like to find the first a string in a string. I know it is not clear, so i decided to give an example.

For example, i got a string:

helloworld,hello

In "helloworld,hello", i want the system to find "hello" and ignore "world,hello". Is that possible?

If my question is unclear, do not refrain from asking me.

Thank you.

Please show me an example on how it works on jsfiddle.

Answer 1

Not without knowing what the content of the string will be. If you do know it, you could parse it with regex, like this: var patt1=/hello/; . This would find the first occurrence of hello.

jsfiddle: http://jsfiddle.net/x7WVP/

Answer 2

请尝试以下操作：

"helloworld,hello".match(/hello/).toString();