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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
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My misstake, you are right, thanks
I used this methods on an income function argument...and income argument is a STRING, but when I used string.toString.(split/replace) everything is work, but i dont understand why?
In this function icome argument is a string already...am I right?
TypeError: string.replace is not a function
at toUnderscore
at /home/codewarrior/index.js:19:20
at /home/codewarrior/index.js:20:5
and if I use string.replace I have simmilar error
I have this error
TypeError: string.split is not a function
at toUnderscore
at /home/codewarrior/index.js:27:20
at /home/codewarrior/index.js:28:5
at Object.handleError
If i wanted to use string.split('') method in JS