How can write a smart contract for my use case in Hyperledger composer?

How can write a smart contract for my use case in Hyperledger composer?

I want to write a smart contract (logic.js)for my use case using hyperledger composer playground tool, i know it is writen in javascript so i studied it(javascript), also i read examples for smart contracts for other networks but it is not enough to me to write my own one, also i read this link(&nbsp;<a href="https://hyperledger.github.io/composer/v0.19/reference/js_scripts.html" target="_blank">https://hyperledger.github.io/composer/v0.19/reference/js_scripts.html</a>). but it still not enough, so my question is how can write my own (logig.js )file?

I want to write a smart contract (logic.js)for my use case using hyperledger composer playground tool, i know it is writen in javascript so i studied it(javascript), also i read examples for smart contracts for other networks but it is not enough to me to write my own one, also i read this link( https://hyperledger.github.io/composer/v0.19/reference/js_scripts.html). but it still not enough, so my question is how can write my own (logig.js )file?

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