Casperjs Practical Notes (1)

A problem with Casperjs's execution workflow (if you can, don't think this is a bug):

The pseudo code is as follows:

var casper = require ("Casper"). Create (); Casper.start ("http://xx.xx.com"); Casper.then ( function () {    this. Echo ("AAAA");       This function () {        this. Echo ("BBB");    })      this. Echo ("CCCC");}); Casper.run () {    this. Echo ("...");}; 

The expected run result should be this:

AAAABBBCCCC ...

The actual running result is this:

AAAACCCCBBB ...

Casperjs itself is a PHANTOMJS test framework that uses the Python language package and has not seen its workflow implementation;

Methods Casper.then and methods casper.wait compose workflow logic, or workflow execution unit;

Other code is not treated as an execution unit, so it must be wrapped in casper.then or casper.wait.

Casper.wait is a series of APIs, in addition to Waitforselector, WaitFor, Waitwhileselector, waituntilvisible and so on;

The most used is this.waitforselector, which sets a timeout to wait for an element (Html element), and if so, what if it does.

So the code in the actual project is about the following:

 This. Then (function(){     This. Echo ("Start ...");  This. WaitFor (/// ...        )     This. Waitforselector (//    ...        )}) This. Then (function(){     This. Echo ("Start ...");  This. WaitFor (/// ...         This. Waitforselector (//    ...            )        )})

(My small project is written by myself, a lot of things are in the groping stage)

I hope that experienced colleagues are not hesitate to enlighten!

Casperjs Practical Notes (1)