javascript - What does the 2nd number after the colon in a node.js stack trace line mean?

Question

In a node.js stack trace there are always two numbers, the line number then a : and another number. In the example below, the first line has faye-redis.js:153:36 and 153 is the line number in that file for where the error is occurring, but what does the number :36 mean?

node_modules/faye-redis/faye-redis.js:153:36 ? publish.notify
node_modules/faye-redis/faye-redis.js:72:16 ? clientExists
node_modules/redis/index.js:532:9 ? try_callback
node_modules/redis/index.js:614:13 ? return_reply
node_modules/redis/index.js:266:14 ? RedisClient.init_parser
events.js:96:17 ? EventEmitter.emit
node_modules/redis/lib/parser/hiredis.js:43:18 ? execute
node_modules/redis/index.js:488:27 ? on_data
node_modules/redis/index.js:82:14 ? none
events.js:96:17 ? EventEmitter.emit
net.js:397:14 ? onread

Answer 1

The first number is the row (line number), the second is the column (character on line). In Javascript many coders habitually nest a lot of code on a single line with closures et al, or use minifiers like YUI compressor, so it's often rather relevant information.