call this function to get a string of method params with their values.

args-to-string.js

/**
 * Print the names and values for arguments of the supplied method.  The example
 * should create a log containing the line: ```[foo:"bar", spam:"eggs"]```
 * ```JavaScript
 * function myFunction(foo, spam){
 *     _argsToString(...arguments)
 * }
 * myFunction("bar", "eggs")
 * ```
 * @param {...*} - apply all arguments to your calling method
 * @return {*}
 * @private
 */
function _argsToString() {
    const args = arguments;
    const results = (args.callee.caller || 'function(){}').toString()
        .match(/function\s.*?\(([^)]*)\)/)[1]
        .split(',')
        // remove inline comments / trim whitespace.
        .map(arg => arg.replace(/\/\*.*\*\//, '').trim())
        // remove undefined values.
        .filter(arg => arg)
        // create string with argName:argValue
        .map((name, i) => `${name}:${args[i]}`);
    return `[${results}]`;
}