Add head as alias for first

src/curried.ts

@@ -11,6 +11,7 @@ export {
   of,
   empty,
   first,
+  head,
   last,
   flatten,
   pop,

src/index.ts

@@ -945,6 +945,13 @@ export function first<A>(l: List<A>): A | undefined {
     : undefined;
 }
 
+/**
+ * Alias for [`first`](#first).
+ *
+ * @category Folds
+ */
+export const head = first;
+
 /**
  * Returns the last element of the list. If the list is empty the
  * function returns `undefined`.

src/methods.ts

@@ -13,6 +13,7 @@ declare module "./index" {
     append(value: A): List<A>;
     intersperse(separator: A): List<A>;
     first(): A | undefined;
+    head(): A | undefined;
     last(): A | undefined;
     map<B>(f: (a: A) => B): List<B>;
     pluck<K extends keyof A>(key: K): List<A[K]>;
@@ -121,6 +122,8 @@ List.prototype.first = function<A>(): A | undefined {
   return L.first(this);
 };
 
+List.prototype.head = List.prototype.first;
+
 List.prototype.last = function<A>(): A | undefined {
   return L.last(this);
 };

src/ramda.ts

@@ -14,6 +14,7 @@ export const repeat = curry(L.repeat);
 export const times = curry(L.times);
 export const length = curry(L.length);
 export const first = curry(L.first);
+export const head = first;
 export const last = curry(L.last);
 export const nth = curry(L.nth);
 export const map = curry(L.map);