If that name is called then UserScriptFunc willbe invoked with a Context(which contains information like the arguments passed, the current font, and into which you set the return value(if any) of your function).
It correctly finds our variable instantiated with our first statement After finding it, the expression is evaluated, foo is replaced by 5 and the JavaScript engine passes that value to the functions as an argument Before executing the statements inside the functions' bodies,JavaScript takes a copy of the original passed argument(which is a primitive) and creates a local copy.
渡された引数は8ビット値に切り捨てられます。
Passed arguments will be truncated to 8-bit values.
引数つきのsayステートメントは関数に渡された引数を見ます。例。
A say with arguments sees the arguments passed tothe function. For example:.
個々のコールはそのコールに渡された引数の配列によって表されます。
Each call is represented by an array of arguments that were passed during the call.
最初の外側のif式はyankに渡された引数がリストであるかどうかのテストである。
The first or outer if expression tests whether the argument passed to yank is a list.
The function takes two arguments, the first is the name of the method attempted andthe second is an array of the arguments that were passed in the method call.
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