Assigning an undefined variable in a one line condition
54050
Ruby if vs end of the line if behave differently?
2701
Assigning to variable from parent function: "Local variable referenced before assignment"
48128
Declaring variables inside or outside of a loop
26198
Emacs: Symbol's value as variable is void
92587
Surprised that global variable has undefined value in JavaScript
37735
How can I check for "undefined" in JavaScript?
54671
assignment in javascript and the var keyword
26433
How does variable assignment work in JavaScript?
34563
Why does PHP consider 0 to be equal to a string?
54750
How do I assign the output of a command to a variable?
20165
How to initialize var?
120124
Undefined values in Array(len) initializer
76995
Why can't I assign an array variable directly to another array variable with the '=' operator?
50136
Using "${a:-b}" for variable assignment in scripts
27606
Detecting an undefined object property
113905
How can I check whether a variable is defined in JavaScript?
118365
Error in if/while (condition) { : argument is of length zero