diff --git a/markdown/dev/reference/api/path/addtext/en.md b/markdown/dev/reference/api/path/addtext/en.md
index 516712eba82..8ce9c0b7021 100644
--- a/markdown/dev/reference/api/path/addtext/en.md
+++ b/markdown/dev/reference/api/path/addtext/en.md
@@ -7,7 +7,7 @@ The `Path.addText()` method adds text to the path.
 ## Signature
 
 ```js
-Path path.addText(string text, string className)
+Path path.addText(string text, string className = '')
 ```
 
 The second argument will optionally be used to set the CSS class for the text.
diff --git a/markdown/dev/reference/api/path/attr/en.md b/markdown/dev/reference/api/path/attr/en.md
index 75d27b52763..81bf3182525 100644
--- a/markdown/dev/reference/api/path/attr/en.md
+++ b/markdown/dev/reference/api/path/attr/en.md
@@ -5,7 +5,7 @@ title: Path.attr()
 This `Path.attr()` method can be used to add attributes to the Path object.
 It calls `this.attributes.add()` under the hood, and returns the Path object.
 
-If the third parameter is set to `true` it will call `this.attributes.set()`
+If the optional third parameter is set to `true` it will call `this.attributes.set()`
 instead, thereby overwriting the value of the attribute.
 
 ## Signature
diff --git a/markdown/dev/reference/api/path/settext/en.md b/markdown/dev/reference/api/path/settext/en.md
index fa9397d3eb7..9c68ebafe11 100644
--- a/markdown/dev/reference/api/path/settext/en.md
+++ b/markdown/dev/reference/api/path/settext/en.md
@@ -7,7 +7,7 @@ The `Path.setText()` method sets text on the path.
 ## Signature
 
 ```js
-Path path.setText(string text, string className)
+Path path.setText(string text, string className = '')
 ```
 
 The second argument will optionally be used to set the CSS class for the text.
diff --git a/markdown/dev/reference/api/path/shiftalong/en.md b/markdown/dev/reference/api/path/shiftalong/en.md
index 89f0ed21d64..7d6ce5b41c8 100644
--- a/markdown/dev/reference/api/path/shiftalong/en.md
+++ b/markdown/dev/reference/api/path/shiftalong/en.md
@@ -8,7 +8,7 @@ along the path.
 ## Signature
 
 ```js
-Point path.shiftAlong(float distance[, int stepsPerMm=10])
+Point path.shiftAlong(float distance, int stepsPerMm = 10)
 ```
 
 The second parameter controls the precision by which the path will be _walked_.
diff --git a/markdown/dev/reference/api/path/shiftfractionalong/en.md b/markdown/dev/reference/api/path/shiftfractionalong/en.md
index 6bceb4f1576..98e76342981 100644
--- a/markdown/dev/reference/api/path/shiftfractionalong/en.md
+++ b/markdown/dev/reference/api/path/shiftfractionalong/en.md
@@ -8,7 +8,7 @@ length of the path travelled along the path.
 ## Signature
 
 ```js
-Point path.shiftFractionAlong(float fraction[, int stepsPerMm=25])
+Point path.shiftFractionAlong(float fraction, int stepsPerMm = 25)
 ```
 
 The second parameter controls the precision by which the path will be _walked_.