If, Else and Blocks

Blocks

Blocks in the JsonPatcher language work like they do in most languages with c-like syntax. They are declared with curly braces and act as their own scope for variables. Blocks inherit variables from blocks outside them.

{ # A block
    var a = 1;
    {
        var b = 2;
        # a and b are accessible here
    }
    # a is accessible here, but b isn't
}

If and Else

The if statement is used to execute code conditionally. It consists of a condition and a body. The syntax is the same as in most languages with c-like syntax. The body is executed if the condition is true.

var a = 1;
if (a == 1) {
    # This will be executed
}

The else statement can be used to execute code if the condition is false.

var a = 1;
if (a == 2) {
    # This won't be executed
} else {
    # This will be executed
}

The else statement can also be used with an if statement to chain multiple conditions.

var a = 1;
if (a == 2) {
    # This won't be executed
} else if (a == 1) {
    # This will be executed
} else {
    # This won't be executed
}

Truthiness

If statements don't just check if the condition is true. You can pass in any value to the if statement, and it will be converted to a boolean for the check. Here's a table of how types are converted to booleans: