Web Development Tips & Tricks

From system development using JavaScript and NodeJS Found that using the command console.log() is a lot Often, the result is not as desired. Therefore introducing a little more Console Console usage Let's get started. Basic Console API In JavaScript Most will find in the debug of the work system as follows. console.log () encountered the most. console.warn () console.error () Let's look at some other useful methods. 1. Console.table() Display data of objects and arrays in a tabular format. Which is easy to read and easy to understand. 2. Console.assert() Check the submitted value to be true or false. If the value entered is false and will write a log for us to see But if true it will not display the log The false value consists of 0, false, blank, etc. 3. Console.count() For counting values or counting work times Very useful when we debug a system. Especially those with a strange life cycle will make us understand work more easily Which will be used to...

In general, if it is HTML , it is not difficult to make a website via W3C . Using Dreamweaver, it is already passed. If not, there is still an error. But if it's a script, you're dizzy, so you have to sit and do it yourself line by line What I would say here is Things that I often encounter img does not have an alt and without/before the end of the tag, especially in the first case. If we don't know what to put alt, they can put a blank value <img src = "xxx.jpg" alt = "" /> The script does not have a type. For example, <script language = "JavaScript" src = "js / function.js" type = "text / javascript"> </script> style, also must have type <link rel = "stylesheet" href = "style / style.css" type = "text / css" /> Some of the properties of the tag, such as align bgcolor. They are no longer used. In truth Must remove it all. If there is an error as soon as I st...