2020年12月29日
Elements in iteration expect to have 'v-bind:key' directives
摘要： https://github.com/vuejs/vetur/issues/858 vuejs v-for add bootstrap row every 5 items <script src="https://vuejs.org/js/vue.min.js"></script> <div id= 阅读全文
posted @ 2020-12-29 16:27 ChuckLu 阅读(145) 评论(0) 推荐(0)
What does a character class with only a lone caret do?
摘要： What does a character class with only a lone caret do? [^][…] is not two character classes but just one character class containing any other character 阅读全文
posted @ 2020-12-29 14:21 ChuckLu 阅读(110) 评论(0) 推荐(0)
What is the point of void operator in JavaScript?
摘要： What is the point of void operator in JavaScript? I've seen some people using void operator in their code. I have also seen this in href attributes: j 阅读全文
posted @ 2020-12-29 10:28 ChuckLu 阅读(75) 评论(0) 推荐(0)
In javascript, is an empty string always false as a boolean?
摘要： In javascript, is an empty string always false as a boolean? in javascript, var a = ''; var b = (a) ? true : false; var b will be set to false. is thi 阅读全文
posted @ 2020-12-29 10:11 ChuckLu 阅读(90) 评论(0) 推荐(0)
Why a is undefined while b is 3 in var a=b=3?
摘要： Why a is undefined while b is 3 in var a=b=3? In the following code, I expected both a and b to be 3. However, a is undefined and b is 3. Why? (functi 阅读全文
posted @ 2020-12-29 10:07 ChuckLu 阅读(110) 评论(0) 推荐(0)