Can you set an undefined variable as a function parameter?
14660
Undefined variable as function argument javascript
30206
Where and how is the _ (underscore) variable specified?
54646
How undefined is undefined behavior?
104312
How do I create a JavaScript Object with defined variables and functions?
95117
How do I pass variables to JavaScript?
44112
"Variable" variables in Javascript?
60461
PHP variables in anonymous functions
93409
Any way to specify optional parameter values in PHP?
5377
Is there a standard function to check for null, undefined, or blank variables in JavaScript?
9122
Setting a function equal a variable?
60938
How to dynamically create a local variable?
18084
How do I save a variable or function definition to a file?
2231
How does one use the store parameter of function fields?
41975
How to pass a function as a parameter in Java?
136606
Default value of function parameter
88288
Calling a function that's defined inside a function
83608
Is it possible to dereference variable id's?