chore Changeset.js: use template strings

Author: webzwo0i

src/static/js/Changeset.js

@@ -286,13 +286,13 @@ exports.checkRep = (cs) => {
         break;
       case '-':
         oldPos += o.chars;
-        exports.assert(oldPos <= oldLen, oldPos, ' > ', oldLen, ' in ', cs);
+        exports.assert(oldPos <= oldLen, `${oldPos} > ${oldLen} in ${cs}`);
         break;
       case '+':
       {
         calcNewLen += o.chars;
         numInserted += o.chars;
-        exports.assert(calcNewLen <= newLen, calcNewLen, ' > ', newLen, ' in ', cs);
+        exports.assert(calcNewLen <= newLen, `${calcNewLen} > ${newLen} in ${cs}`);
         break;
       }
     }
@@ -533,7 +533,7 @@ exports.stringIterator = (str) => {
   const getnewLines = () => newLines;
 
   const assertRemaining = (n) => {
-    exports.assert(n <= remaining(), '!(', n, ' <= ', remaining(), ')');
+    exports.assert(n <= remaining(), `!( ${n} <= ${remaining()} )`);
   };
 
   const take = (n) => {
@@ -1057,8 +1057,8 @@ exports.pack = (oldLen, newLen, opsStr, bank) => {
  */
 exports.applyToText = (cs, str) => {
   const unpacked = exports.unpack(cs);
-  exports.assert(str.length === unpacked.oldLen, 'mismatched apply: ', str.length,
-      ' / ', unpacked.oldLen);
+  exports.assert(str.length === unpacked.oldLen, `mismatched apply: ${str.length}
+      / ${unpacked.oldLen}`);
   const csIter = exports.opIterator(unpacked.ops);
   const bankIter = exports.stringIterator(unpacked.charBank);
   const strIter = exports.stringIterator(str);