# Contributors by commit history https://github.com/mdn/content/commits/main/files/en-us/web/javascript/reference/global_objects/json/israwjson/index.md # Original Wiki contributors 184

# Contributors by commit history https://github.com/mdn/content/commits/main/files/en-us/web/javascript/reference/global_objects/regexp/symbol.species/index.md # Original Wiki contributors mfuji09 ...

The JavaScript exception "Initializing an object twice is an error with private fields/methods" occurs when an object that was created via a class constructor goes through the class construction again, and the class contains a private property. This is usually caused by the return override trick.

The JavaScript exception "numbers out of order in {} quantifier" occurs when a quantifier in a regular expression uses the {n,m} syntax but m is less than n.

The JavaScript exception "super() called twice in derived class constructor" occurs when the super() is called a second time for a given derived class constructor.

The surfaceScale attribute represents the height of the surface for a light filter primitive.

The targetY attribute determines the positioning in vertical direction of the convolution matrix relative to a given target pixel in the input image. The topmost row of the matrix is row number zero. The value must be such that: 0 <= targetY < order Y.

The JavaScript error "string literal contains an unescaped line break" occurs when there is an unterminated string literal somewhere. String literals must be enclosed by single (') or double (") quotes and cannot split across multiple lines.

The stroke-linejoin attribute is a presentation attribute defining the shape to be used at the corners of paths when they are stroked.

The JavaScript exception "invalid assignment to const" occurs when it was attempted to alter a constant value. JavaScript const declarations can't be re-assigned or redeclared.