was和there – js/jQuery – 前端 jquery 判断元素是否可见

区分就是根椐紧跟其后的名词单复数形式决定，中文意思是某地有某物或某人，具体的不同如下

there was的例句

Sometimes a mist seemed to be falling, and sometimes there was a sudden downpour of heavy, slanting rain.一忽儿像是下大雾，突然间又下起倾盆大雨。

there were的例句

Before jQuery 1.3, there were three ways to get around this problem, none of them elegant (for those of you who continue to use jQuery 1.2.x, these are still valid).