How can I extract the user name from an email address using javascript?

Question

Given the following email address -- [email protected] -- how can I extract someone from the address using javascript?

Thank you.

Answer 1

Regular Expression with match

with safety checks

var str="[email protected]"; var nameMatch = str.match(/^([^@]*)@/); var name = nameMatch ? nameMatch[1] : null; 

written as one line

var name = str.match(/^([^@]*)@/)[1]; 

Regular Expression with replace

with safety checks

var str="[email protected]"; var nameReplace = str.replace(/@.*$/,""); var name = nameReplace!==str ? nameReplace : null; 

written as one line

var name = str.replace(/@.*$/,""); 

Split String

with safety checks

var str="[email protected]"; var nameParts = str.split("@"); var name = nameParts.length==2 ? nameParts[0] : null; 

written as one line

var name = str.split("@")[0]; 

Performance Tests of each example

JSPerf Tests