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If statement

Syntax

if <condition> <body> [else <body>]

hashtag
If-chain

if cond {
    // ...
} else if cond2 {
    // ...
} else {
    // ...
}

In fact, the code above same to...

if cond {
    // ...
} else {
    if cond {
        // ...
    } else {
        // ...
    }
}
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