Simplify substitutePattern

Throne3d · Throne3d · commit 9848a89dd6e9 · 2017-03-29T22:24:07.000+01:00
diff --git a/lib/bot.js b/lib/bot.js
@@ -177,10 +177,7 @@ class Bot {
   }
 
   static substitutePattern(message, patternMapping) {
-    return message.replace(patternMatch, (match, varName) => {
-      if (varName in patternMapping) return patternMapping[varName];
-      return match;
-    });
+    return message.replace(patternMatch, (match, varName) => patternMapping[varName] || match);
   }
 
   sendToIRC(message) {

Original file line number	Diff line number	Diff line change
`@@ -177,10 +177,7 @@ class Bot {`
`177`	`177`	`}`
`178`	`178`
`179`	`179`	`static substitutePattern(message, patternMapping) {`
`180`		`- return message.replace(patternMatch, (match, varName) => {`
`181`		`- if (varName in patternMapping) return patternMapping[varName];`
`182`		`- return match;`
`183`		`- });`
	`180`	`+ return message.replace(patternMatch, (match, varName) => patternMapping[varName] \|\| match);`
`184`	`181`	`}`
`185`	`182`
`186`	`183`	`sendToIRC(message) {`