How to search in files and show the lines before and after
Let’s see how to search in files and show the lines before and after the coincidences. Very useful when searching in log files, for example. »
How to fix: $ is not defined on NightmareJS
I keep learning new things. This time advanced web scraping with NightmareJS but soon I faced this issue. Let’s see how to fix $ is not »
How to use :not with multiple selectors in CSS
Sometime ago I was trying to use :not with multiple selectors in CSS. I was typing input:not([type="radio"], [type="checkbox" »
How to return the updated document on Mongoose
If you are working with Mongoose, maybe noticed that the update’s callback is not returning the post-update object. Didn’t you noticed it? Let’s »
How to broadcast events in AngularJS
Sometimes you may need to communicate within 2 or more AngularJS components and probably you should use the events. Let’s see how to broadcast events »
