Discussion on: What do you think about the idea that "there should be only one way of doing a thing" in programming languages?

Is not a terrible idea.

In PHP you can append an item to an array in two ways

$arr = [];

// like this
array_push($arr, 1);

// or this
$arr[] = 2;

// PHP, why would you do that to yourself?

It certainly could help avoid meaningless discussions. Not so long ago the javascript twitterverse got mad because apparently reduce is like 500 times slower than a for loop, and of course the performance people was all over the place saying: stop using reduce, your killing your app. Think about the children!!

Might also lead to less bugs, because there are less "tricky parts." Consider this javascript object:

const shape = {
  radius: 10,
  diameter() {
    return this.radius * 2;
  },
  perimeter: () => 2 * Math.PI * this.radius
};

shape.diameter();
shape.perimeter();

Even though diameter and perimeter are "methods" one of them raises an error.