JavaScript - get method call stack

const pattern = /^\s*at\s*(\w*)\s+\(?(.*)\)?\s*$/g;

const getCallStack = () => {

    const stack = [];

    try {

        throw new Error(); // exception throwing to get access to call stack

    } catch(e) {

        const parts = e.stack.split('\n');

        for (let i = 2; i < parts.length; ++i) {

            pattern.lastIndex = 0;

            const match = pattern.exec(parts[i]);

            if (match) {

                stack.push({

                    method: match[1],

                    file: match[2]

                });

            }

        }

    }

    return stack;

};

​

// Usage example:

​

const method1 = () => {

    const stack = getCallStack();

    console.log('----------------------------');

    console.log(' method1                    ');

    console.log('----------------------------');

    console.log(JSON.stringify(stack[0], null, 2));

    console.log(JSON.stringify(stack[1], null, 2));

    console.log();

};

​

const method2 = () => {

    const stack = getCallStack();

    console.log('----------------------------');

    console.log(' method2                    ');

    console.log('----------------------------');

    console.log(JSON.stringify(stack[0], null, 2));

    console.log();

    method1();

};

​

method2();