A=> funks…
://.+.mozilla.org/ja/docs/Web/JavaScript/Reference/Functions/Arrow_functions#description
://.+.mozilla.org/ja/docs/Web/CSS/@import#importing_css_rules_into_a_cascade_layer
// Traditional anonymous function
(function (a) {
return a + 100;
});
// 1. Remove the word "function" and place arrow between the argument and opening body brace
(a) => {
return a + 100;
};
// 2. Remove the body braces and word "return" — the return is implied.
(a) => a + 100;
// 3. Remove the parameter parentheses
a => a + 100;