Shut-up Operator @

• Motivation
• Usage examples
• Potential problems
• Other languages

Motivation

We all love good old JavaECMAScript. And we all want to write code the way our ancestors did. Without fear of suddenly appearing exceptions, type errors and undefined is not a function.

Best practices from Vanilla ES:

• There is no "division by zero error", only Infinity
• There is no errors in parseInt('💩'), only NaN
• There is no "reference error", only undefined

And that's really beautiful...

Why not generalize this practices and silence all these annoying errors? Just use "shut-up" operator @.

Usage examples

No need to check input arguments.

function f(callback) {
    callback('result');
}

// Haters gonna hate
@f(undefined);

No uncontrolled exceptions.

// Bye-bye "Cannot read property"
@(null.is.safe.now);

Unlimited power.

'use strict';  // Pfftt, @ don't care

@(true.value = 1);

Just add @.

Potential problems

• Conflicting syntax with decorators. But who needs decorators, if you have such a feature as @ operator.
• Maybe too powerful for mere mortals.

Other languages

• try? in Swift
• @ in PHP