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1. 使用物体的条件
原标题:If condition using object

I have not seen this before. The if statement includes simply an object

  • if(grid && grid.length > 10) ...

where "grid" is the object. Is the way it s coded here a typical usage, being there s no test for a true or false condition. Maybe it s just asking if the object exists or not?

Seems to work as otherwise expected. 我不知道,作为独立条件的物体是否正在做任何事情。

问题回答

在联合材料中,非风化价值可视为是虚幻的,而你再次提供的样本是在继续使用电网之前完全合法的检查。

https://www.sitepoint.com/javascript-truthy-falsy/#:~:text=Yes%2C%20in%20Javagust%2C%20several%20non,will%20be%20ed%20as%20falle





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