change let to var in function AMTgetTeXsymbol

[beeplin]

sometimes the ES6 let causes error during webpack building. Changing it to var solves this problem.

[tylerlong]

Show me how to produce the error. (Are your running a very ancient version of Node.js?)

I prefer ES6 syntax unless there is a good reason to stick to ES5.

[beeplin]

I am using the latest nodejs v7 and webpack v2. I got the error when doing 'npm run build' -- uglifyJs does not recognize 'let'. Normally babel runs before uglifyJs and converts 'let' to 'var', but in many cases people config webpack not to run babel for files in 'node_modules' in order to save some packing time, so the js file with 'let' was passed to uglifyJs directly. 'npm run dev' works fine since it does not call uglifyJs.

It is wonderful to write source code in es6 but when publishing a node package it is recommended to convert es6 in src to es5 in dist yo avoiding the issue mentioned above.

[tylerlong]

Fair enough.

I will release a new version soon.

[tylerlong]

Released version 0.3.2 to npm

[beeplin]

:)

BTW how about exporting newsymbol and newcommand functions just like the orignal ASCIIMathML.js? It is quite uaeful to cumstomize new commands.

[tylerlong]

I don't use them myself. So I have no idea what are they.

Feel free to submit PRs. Don't forget to provide usage sample in README.md