Slightly more concise

1 files changed, 24 insertions, 27 deletions

diff --git a/src/gleam_stdlib.mjs b/src/gleam_stdlib.mjs
index 6af9aff..a2fbaa6 100644
--- a/src/gleam_stdlib.mjs
+++ b/src/gleam_stdlib.mjs
@@ -197,15 +197,12 @@ export function split(xs, pattern) {
 }
 
 export function join(xs, separator) {
-  let result = "";
-  let i = 0;
-  for (const x of xs) {
-    if (i == 0) {
-      result = x
-    } else {
-      result = result + separator + x;
-    }
-    i++;
+  const iterator = xs[Symbol.iterator]();
+  let result = iterator.next().value || "";
+  let current = iterator.next();
+  while (!current.done) {
+    result = result + separator + current.value;
+    current = iterator.next();
   }
   return result;
 }
@@ -515,14 +512,14 @@ function uint6ToB64(nUint6) {
   return nUint6 < 26
     ? nUint6 + 65
     : nUint6 < 52
-      ? nUint6 + 71
-      : nUint6 < 62
-        ? nUint6 - 4
-        : nUint6 === 62
-          ? 43
-          : nUint6 === 63
-            ? 47
-            : 65;
+    ? nUint6 + 71
+    : nUint6 < 62
+    ? nUint6 - 4
+    : nUint6 === 62
+    ? 43
+    : nUint6 === 63
+    ? 47
+    : 65;
 }
 
 // From https://developer.mozilla.org/en-US/docs/Glossary/Base64#Solution_2_%E2%80%93_rewrite_the_DOMs_atob()_and_btoa()_using_JavaScript's_TypedArrays_and_UTF-8
@@ -530,14 +527,14 @@ function b64ToUint6(nChr) {
   return nChr > 64 && nChr < 91
     ? nChr - 65
     : nChr > 96 && nChr < 123
-      ? nChr - 71
-      : nChr > 47 && nChr < 58
-        ? nChr + 4
-        : nChr === 43
-          ? 62
-          : nChr === 47
-            ? 63
-            : 0;
+    ? nChr - 71
+    : nChr > 47 && nChr < 58
+    ? nChr + 4
+    : nChr === 43
+    ? 62
+    : nChr === 47
+    ? 63
+    : 0;
 }
 
 // From https://developer.mozilla.org/en-US/docs/Glossary/Base64#Solution_2_%E2%80%93_rewrite_the_DOMs_atob()_and_btoa()_using_JavaScript's_TypedArrays_and_UTF-8
@@ -660,7 +657,7 @@ function decode_tupleN(data, n) {
     return new Ok(data);
   }
 
-  let list = decode_exact_length_list(data, n);
+  const list = decode_exact_length_list(data, n);
   if (list) return new Ok(list);
 
   return decoder_error(`Tuple of ${n} elements`, data);
@@ -669,7 +666,7 @@ function decode_tupleN(data, n) {
 function decode_exact_length_list(data, n) {
   if (!List.isList(data)) return;
 
-  let elements = [];
+  const elements = [];
   let current = data;
 
   for (let i = 0; i < n; i++) {