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Why not always use the index as the key in a vue.js for loop? I have used vue.js for a couple of projects and I have been using the index as the key i 阅读全文
posted @ 2020-12-30 10:34
ChuckLu
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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
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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
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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
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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
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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
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Dynamically access object property using variable I'm trying to access a property of an object using a dynamic name. Is this possible? const something 阅读全文
posted @ 2020-12-28 18:17
ChuckLu
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What is the difference between readonly=“true” & readonly=“readonly”? What is the difference between: <input name="TextBox1" type="text" id="TextBox1" 阅读全文
posted @ 2020-12-28 18:11
ChuckLu
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https://www.learn-sudoku.com/x-wing.html X Wing An X Wing is a technique for removing candidates (pencil marks). It starts with either two parallel ro 阅读全文
posted @ 2020-12-28 13:17
ChuckLu
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Vue.js—Difference between v-model and v-bind I'm learning Vue with an online course and the instructor gave me an exercise to make an input text with 阅读全文
posted @ 2020-12-28 10:00
ChuckLu
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