How to detect when mathjax is fully loaded?

问题

Is there anyway to identify when the mathjax is fully loaded to process mathematics. I need to hide my mathematics equations before mathjax is fully loaded and show 'loading' message in mean time.

回答1:

For those who might be looking for the answer, this is the response i got from Mathjax developer

The way to synchronize with MathJax's startup actions it to register a StartupHook that will fire when the startup is complete. For example, you can use

MathJax.Hub.Register.StartupHook("End",function () { ... your startup code here ... });

at the end of the tag that configures MathJax, or in a separate tag just after loading MathJax if you are using the default MathJax configuration file in MathJax/config/MathJax.js. That should let you hook into MathJax's initialization sequence so you can do your own setup at the right time.

Thanks David

回答2:

If you have Jquery loaded you can use getScript()

var mjaxURL  = 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS-MML_HTMLorMML,Safe.js';
// load mathjax script
$.getScript(mjaxURL, function() {
    // mathjax successfully loaded, let it render
    MathJax.Hub.Queue(["Typeset", MathJax.Hub, 'c'+parentid+'_list']);
});

来源：https://stackoverflow.com/questions/3014018/how-to-detect-when-mathjax-is-fully-loaded