modding:function:and
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| modding:function:and [2017/01/26 21:06] – 0xabcdef | modding:function:and [2017/01/27 02:17] – 0xabcdef | ||
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| ^ | [exp2 ... expn]: optional expressions that each evaluate to **Nil** or non-**Nil**. | | ^ | [exp2 ... expn]: optional expressions that each evaluate to **Nil** or non-**Nil**. | | ||
| ^ Returns | If all arguments return a non-**Nil** value, then returns the value of the last argument. Otherwise, returns **Nil**. If there is only one argument, then returns the value of that argument. | | ^ Returns | If all arguments return a non-**Nil** value, then returns the value of the last argument. Otherwise, returns **Nil**. If there is only one argument, then returns the value of that argument. | | ||
| - | ^ Category | [[logical operator]] | | + | ^ Category | [[logical operator function | logical operator]] | |
| ^ Description | Uses lazy evaluation, which means that it stops after it finds a **Nil** value or ends up evaluating every argument if all of them return a non-**Nil** value. | | ^ Description | Uses lazy evaluation, which means that it stops after it finds a **Nil** value or ends up evaluating every argument if all of them return a non-**Nil** value. | | ||
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| (and (gr (count (setq foo (list Nil Nil Nil))) 2) 5) | (and (gr (count (setq foo (list Nil Nil Nil))) 2) 5) | ||
| </ | </ | ||
| - | Returns **5**. Also, **foo** will be set to **300** | + | Returns **5**. Also, **foo** will be set to **(Nil Nil Nil)** |
| < | < | ||
modding/function/and.txt · Last modified: 2017/01/27 02:17 by 0xabcdef