Use === more frequently in binary.js

The convention is to use `===` in situations where type·casting is
known not occur.

diff --git a/binary.js b/binary.js
index d5642bdc0e8d523e2f5db370ddb749c501879ee3..deb13dba190cab9afd28d1dcfabf16a4b93723d9 100644 (file)
--- a/binary.js
+++ b/binary.js
@@ -96,7 +96,7 @@ const bufferFromArgs = ($, $s) => {
         ),
         [],
       ))(
-        typeof $ == "string"
+        typeof $ === "string"
           ? $
           : hasOwnProperty($, "raw")
           ? rawString(
@@ -138,7 +138,7 @@ const decodeBase16 = (source) => {
     },
   );
   const { length } = u4s;
-  if (length % 2 == 1) {
+  if (length % 2 === 1) {
     // The length is such that an entire letter would be dropped during
     // a forgiving decode.
     throw new RangeError(
@@ -171,7 +171,7 @@ const decodeBase32 = (source, wrmg) => {
   const u5s = map(
     wrmg
       ? stringReplace(source, /-/gu, "")
-      : source.length % 8 == 0
+      : source.length % 8 === 0
       ? stringReplace(source, /(?:=|={3,4}|={6})$/u, "")
       : source,
     (ucsCharacter) => {
@@ -181,15 +181,15 @@ const decodeBase32 = (source, wrmg) => {
           ? code - 48
           : code >= 0x41 && code <= 0x48
           ? code - 55
-          : code == 0x49
+          : code === 0x49
           ? 1 // I
           : code >= 0x4A && code <= 0x4B
           ? code - 56
-          : code == 0x4C
+          : code === 0x4C
           ? 1 // L
           : code >= 0x4D && code <= 0x4E
           ? code - 57
-          : code == 0x4F
+          : code === 0x4F
           ? 0 // O
           : code >= 0x50 && code <= 0x54
           ? code - 58
@@ -198,15 +198,15 @@ const decodeBase32 = (source, wrmg) => {
           ? code - 59
           : code >= 0x61 && code <= 0x68
           ? code - 87
-          : code == 0x69
+          : code === 0x69
           ? 1 // i
           : code >= 0x6A && code <= 0x6B
           ? code - 88
-          : code == 0x6C
+          : code === 0x6C
           ? 1 // l
           : code >= 0x6D && code <= 0x6E
           ? code - 89
-          : code == 0x6F
+          : code === 0x6F
           ? 0 // o
           : code >= 0x70 && code <= 0x74
           ? code - 90
@@ -232,7 +232,7 @@ const decodeBase32 = (source, wrmg) => {
   );
   const { length } = u5s;
   const lengthMod8 = length % 8;
-  if (lengthMod8 == 1 || lengthMod8 == 3 || lengthMod8 == 6) {
+  if (lengthMod8 === 1 || lengthMod8 === 3 || lengthMod8 === 6) {
     // The length is such that an entire letter would be dropped during
     // a forgiving decode.
     throw new RangeError(
@@ -247,27 +247,27 @@ const decodeBase32 = (source, wrmg) => {
       // decode” behaviour specified by WhatW·G for base64.
       const dataIndex = ceil(index * 5 / 8);
       const remainder = index % 8;
-      if (remainder == 0) {
+      if (remainder === 0) {
         call(viewSetUint8, dataView, [
           dataIndex,
           u5s[index] << 3 | u5s[++index] >> 2,
         ]);
-      } else if (remainder == 1) {
+      } else if (remainder === 1) {
         call(viewSetUint8, dataView, [
           dataIndex,
           u5s[index] << 6 | u5s[++index] << 1 | u5s[++index] >> 4,
         ]);
-      } else if (remainder == 3) {
+      } else if (remainder === 3) {
         call(viewSetUint8, dataView, [
           dataIndex,
           u5s[index] << 4 | u5s[++index] >> 1,
         ]);
-      } else if (remainder == 4) {
+      } else if (remainder === 4) {
         call(viewSetUint8, dataView, [
           dataIndex,
           u5s[index] << 7 | u5s[++index] << 2 | u5s[++index] >> 3,
         ]);
-      } else { // remainder == 6
+      } else { // remainder === 6
         call(viewSetUint8, dataView, [
           dataIndex,
           u5s[index] << 5 | u5s[++index, index++],
@@ -286,7 +286,7 @@ const decodeBase32 = (source, wrmg) => {
  */
 const decodeBase64 = (source, safe = false) => {
   const u6s = map(
-    source.length % 4 == 0
+    source.length % 4 === 0
       ? stringReplace(source, /={1,2}$/u, "")
       : source,
     (ucsCharacter) => {
@@ -297,9 +297,9 @@ const decodeBase64 = (source, safe = false) => {
         ? code - 71
         : code >= 0x30 && code <= 0x39
         ? code + 4
-        : code == (safe ? 0x2D : 0x2B)
+        : code === (safe ? 0x2D : 0x2B)
         ? 62
-        : code == (safe ? 0x5F : 0x2F)
+        : code === (safe ? 0x5F : 0x2F)
         ? 63
         : -1;
       if (result < 0) {
@@ -312,7 +312,7 @@ const decodeBase64 = (source, safe = false) => {
     },
   );
   const { length } = u6s;
-  if (length % 4 == 1) {
+  if (length % 4 === 1) {
     // The length is such that an entire letter would be dropped during
     // a forgiving decode.
     throw new RangeError(
@@ -327,17 +327,17 @@ const decodeBase64 = (source, safe = false) => {
       // decode” behaviour specified by WhatW·G for base64.
       const dataIndex = ceil(index * 3 / 4);
       const remainder = index % 4;
-      if (remainder == 0) {
+      if (remainder === 0) {
         call(viewSetUint8, dataView, [
           dataIndex,
           u6s[index] << 2 | u6s[++index] >> 4,
         ]);
-      } else if (remainder == 1) {
+      } else if (remainder === 1) {
         call(viewSetUint8, dataView, [
           dataIndex,
           u6s[index] << 4 | u6s[++index] >> 2,
         ]);
-      } else { // remainder == 2
+      } else { // remainder === 2
         call(viewSetUint8, dataView, [
           dataIndex,
           u6s[index] << 6 | u6s[++index, index++],
@@ -420,21 +420,21 @@ const encodeBase32 = (buffer, wrmg = false) => {
         // digits 1, 3, 4 & 6 span multiple bytes
         ? call(viewGetUint8, dataView, [index])
         : 0;
-    const u5 = remainder == 0
+    const u5 = remainder === 0
       ? currentByte >> 3
-      : remainder == 1
+      : remainder === 1
       ? (currentByte & 0b00000111) << 2 | nextByte >> 6
-      : remainder == 2
+      : remainder === 2
       ? (currentByte & 0b00111111) >> 1
-      : remainder == 3
+      : remainder === 3
       ? (currentByte & 0b00000001) << 4 | nextByte >> 4
-      : remainder == 4
+      : remainder === 4
       ? (currentByte & 0b00001111) << 1 | nextByte >> 7
-      : remainder == 5
+      : remainder === 5
       ? (currentByte & 0b01111111) >> 2
-      : remainder == 6
+      : remainder === 6
       ? (currentByte & 0b00000011) << 3 | nextByte >> 5
-      : (++index, currentByte & 0b00011111); // remainder == 7
+      : (++index, currentByte & 0b00011111); // remainder === 7
     const result = wrmg
       ? u5 < 10 ? u5 + 48 : u5 < 18
         ? u5 + 55
@@ -491,7 +491,7 @@ const encodeBase64 = (buffer, safe = false) => {
   for (let index = 0; index < byteLength;) {
     const codeUnitIndex = ceil(index * 4 / 3);
     const currentIndex = codeUnitIndex + +(
-      index % 3 == 0 && resultingCodeUnits[codeUnitIndex] != 0x3D
+      index % 3 === 0 && resultingCodeUnits[codeUnitIndex] != 0x3D
     ); // every third byte handles two letters; this is for the second
     const remainder = currentIndex % 4;
     const currentByte = call(viewGetUint8, dataView, [index]);
@@ -499,13 +499,13 @@ const encodeBase64 = (buffer, safe = false) => {
       // digits 1 & 2 span multiple bytes
       ? call(viewGetUint8, dataView, [index])
       : 0;
-    const u6 = remainder == 0
+    const u6 = remainder === 0
       ? currentByte >> 2
-      : remainder == 1
+      : remainder === 1
       ? (currentByte & 0b00000011) << 4 | nextByte >> 4
-      : remainder == 2
+      : remainder === 2
       ? (currentByte & 0b00001111) << 2 | nextByte >> 6
-      : (++index, currentByte & 0b00111111); // remainder == 3
+      : (++index, currentByte & 0b00111111); // remainder === 3
     const result = u6 < 26
       ? u6 + 65
       : u6 < 52
@@ -534,7 +534,7 @@ const encodeBase64 = (buffer, safe = false) => {
  */
 const sourceFromArgs = ($, $s) =>
   stringReplace(
-    typeof $ == "string" ? $ : hasOwnProperty($, "raw")
+    typeof $ === "string" ? $ : hasOwnProperty($, "raw")
       ? rawString(
         $,
         ...objectCreate(argumentIterablePrototype, {
@@ -666,8 +666,8 @@ export const isBase16 = ($) => {
     return false;
   } else {
     const source = stringReplace($, /[\t\n\f\r ]+/gu, "");
-    return source.length % 2 != 1 &&
-      call(reExec, /[^0-9A-F]/iu, [source]) == null;
+    return source.length % 2 !== 1 &&
+      call(reExec, /[^0-9A-F]/iu, [source]) === null;
   }
 };
 
@@ -682,11 +682,11 @@ export const isBase32 = ($) => {
     return false;
   } else {
     const source = stringReplace($, /[\t\n\f\r ]+/gu, "");
-    const trimmed = source.length % 8 == 0
+    const trimmed = source.length % 8 === 0
       ? stringReplace(source, /(?:=|={3,4}|={6})$/u, "")
       : source;
-    return trimmed.length % 8 != 1 &&
-      call(reExec, /[^2-7A-Z/]/iu, [trimmed]) == null;
+    return trimmed.length % 8 !== 1 &&
+      call(reExec, /[^2-7A-Z/]/iu, [trimmed]) === null;
   }
 };
 
@@ -701,11 +701,11 @@ export const isBase64 = ($) => {
     return false;
   } else {
     const source = stringReplace($, /[\t\n\f\r ]+/gu, "");
-    const trimmed = source.length % 4 == 0
+    const trimmed = source.length % 4 === 0
       ? stringReplace(source, /={1,2}$/u, "")
       : source;
-    return trimmed.length % 4 != 1 &&
-      call(reExec, /[^0-9A-Za-z+\/]/u, [trimmed]) == null;
+    return trimmed.length % 4 !== 1 &&
+      call(reExec, /[^0-9A-Za-z+\/]/u, [trimmed]) === null;
   }
 };
 
@@ -732,11 +732,11 @@ export const isFilenameSafeBase64 = ($) => {
     return false;
   } else {
     const source = stringReplace($, /[\t\n\f\r ]+/gu, "");
-    const trimmed = source.length % 4 == 0
+    const trimmed = source.length % 4 === 0
       ? stringReplace(source, /={1,2}$/u, "")
       : source;
-    return trimmed.length % 4 != 1 &&
-      call(reExec, /[^0-9A-Za-z_-]/u, [trimmed]) == null;
+    return trimmed.length % 4 !== 1 &&
+      call(reExec, /[^0-9A-Za-z_-]/u, [trimmed]) === null;
   }
 };
 
@@ -765,8 +765,8 @@ export const isWRMGBase32 = ($) => {
   } else {
     const source = stringReplace($, /[\t\n\f\r ]+/gu, "");
     const trimmed = stringReplace(source, /-/gu, "");
-    return trimmed.length % 8 != 1 &&
-      call(reExec, /[^0-9A-TV-Z]/iu, [trimmed]) == null;
+    return trimmed.length % 8 !== 1 &&
+      call(reExec, /[^0-9A-TV-Z]/iu, [trimmed]) === null;
   }
 };