你preFER＆QUOT;若（VAR）QUOT;或者QUOT;若（！变种= 0）＆QUOT ;? [英] Do you prefer "if (var)" or "if (var != 0)"?

问题描述

我已经在C-衍生语言编程现在的几十年。某处沿线，我决定，我不再想写：

I've been programming in C-derived languages for a couple of decades now. Somewhere along the line, I decided that I no longer wanted to write:

if (var)    // in C
if ($var)   # in Perl

在我的意思是：

if (var != 0)
if (defined $var and $var ne '')

我觉得它的一部分是，我有一个强类型的大脑和在我的脑海，如果需要一个boolean前pression。

I think part of it is that I have a strongly-typed brain and in my mind, "if" requires a boolean expression.

或者，也许是因为我使用Perl那么多，真理和谬误在Perl是这样的雷场。

Or maybe it's because I use Perl so much and truth and falsehood in Perl is such a mine-field.

或者，也许这只是因为这几天，我主要是Java程序员。

Or maybe it's just because these days, I'm mainly a Java programmer.

你有什么preferences为什么？

What are your preferences and why?

推荐答案

我喜欢我的如果取值朗读的时候才有意义：

I like my ifs to make sense when read aloud:

if (is_it_happening) ...
if (number_of_sheep != 0) ...
if (pointer_to_something != NULL) ...

这篇关于你preFER＆QUOT;若（VAR）QUOT;或者QUOT;若（！变种= 0）＆QUOT ;?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！