tweak error message

mbostock · mbostock · commit 7d3204df3727 · 2023-09-12T15:47:39.000-07:00
diff --git a/src/transforms/tree.js b/src/transforms/tree.js
@@ -169,7 +169,7 @@ function nodeData(field) {
 function normalizer(delimiter = "/") {
   delimiter = `${delimiter}`;
   if (delimiter === "/") return (P) => P; // paths are already slash-separated
-  if (delimiter.length !== 1) throw new Error(`multi-character delimiter`);
+  if (delimiter.length !== 1) throw new Error("delimiter must be exactly one character");
   const delimiterCode = delimiter.charCodeAt(0);
   return (P) => P.map((p) => slashDelimiter(p, delimiterCode));
 }

Original file line number	Diff line number	Diff line change
`@@ -169,7 +169,7 @@ function nodeData(field) {`
`169`	`169`	`function normalizer(delimiter = "/") {`
`170`	`170`	delimiter = `${delimiter}`;
`171`	`171`	`if (delimiter === "/") return (P) => P; // paths are already slash-separated`
`172`		- if (delimiter.length !== 1) throw new Error(`multi-character delimiter`);
	`172`	`+ if (delimiter.length !== 1) throw new Error("delimiter must be exactly one character");`
`173`	`173`	`const delimiterCode = delimiter.charCodeAt(0);`
`174`	`174`	`return (P) => P.map((p) => slashDelimiter(p, delimiterCode));`
`175`	`175`	`}`