ether-unit-converter/test/test.js

The utility functions provide a conversation assortment of common utility functions, and can easily convert Wei to value and value to Wei without a round number.

/**
 * This test cases passes
 */
 const { WebUtils } = require("ether-unit-convertor");

 /**
  * For Wei to Value
  */
 
 let value = WebUtils.fromWei("100000", 6);
 console.log("Value for 6 decimal", value); //: 0.1
 
 value = WebUtils.fromWei("10000000000", 10);
 console.log("Value for 10 decimal", value); //: 1
 
 value = WebUtils.fromWei("420120012000000000", 18);
 console.log("Value for 18 decimal", value); //: 0.420120012
 
 /**
  * For Value to Wei
  */
 let wei = WebUtils.toWei("0.1", 6); //:100000
 console.log("Wei for 6 decimal", wei);
 
 wei = WebUtils.toWei("1", 10);
 console.log("Wei for 10 decimal", wei); //: 10000000000
 
 wei = WebUtils.toWei("0.420120012", 18); //: 420120012000000000
 console.log("Wei for 18 decimal", wei);