Getting a JavaScript stracktrace in any browser

Category: JavaScript , Tip

Eric Wendelin has posted on getting a JavaScript stack trace no matter that the browser.

With Firebug you can call console.trace() but what about the rest?

Luke Smith took Eric’s work and added to it, ending up with:

(function () {
YOUR_NAMESPACE.getStackTrace = (function () {

var mode;
try {(0)()} catch (e) {
mode = e.stack ? ‘Firefox’ : window.opera ? ‘Opera’ : ‘Other’;
}

switch (mode) {
case ‘Firefox’ : return function () {
try {(0)()} catch (e) {
return e.stack.replace(/^.*?\n/,”).
replace(/(?:\n@:0)?\s+$/m,”).
replace(/^\(/gm,'{anonymous}(‘).
split(“\n”);
}
};

case ‘Opera’ : return function () {
try {(0)()} catch (e) {
var lines = e.message.split(“\n”),
ANON = ‘{anonymous}’,
lineRE = /Line\s+(\d+).*?in\s+(http\S+)(?:.*?in\s+function\s+(\S+))?/i,
i,j,len;

for (i=4,j=0,len=lines.length; i

Posted by Dion Almaer at 5:43 am
1 Comment