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What is a regex to match ONLY an empty string? 回答1 I would use a negative lookahead for any character: ^(?![\s\S]) This can only match if the input is 阅读全文
posted @ 2021-01-11 14:27
ChuckLu
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Javascript中prototype属性详解 深入理解Javascript中构造函数和原型对象的区别 https://github.com/mqyqingfeng/Blog/issues/2 Use of 'prototype' vs. 'this' in JavaScript? 在典型的面向对 阅读全文
posted @ 2021-01-09 21:59
ChuckLu
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https://www.cnblogs.com/UncleKeith/p/5803551.html 典型的面向对象编程语言（比如C++和Java），存在“类”（class）这个概念。所谓“类”就是对象的模板，对象就是“类”的实例。但是，在JavaScript语言的对象体系，不是基于“类”的，而是基于 阅读全文
posted @ 2021-01-09 21:56
ChuckLu
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How to wait for a browser re-render? Vue.nextTick doesn't seem to cover it, and setTimeout(..., 0) is not good enough. #9200 What problem does this fe 阅读全文
posted @ 2021-01-07 18:46
ChuckLu
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How to function call using 'this' inside forEach loop In the following object, I have a problem using the 'this' reference: function SampleObject(){ t 阅读全文
posted @ 2021-01-07 15:01
ChuckLu
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jquery.validate.unobtrusive not working with dynamic injected elements I am working with ASP.Net MVC3, the easier way to use the client validation wou 阅读全文
posted @ 2021-01-07 14:39
ChuckLu
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Difference between jQuery.extend and jQuery.fn.extend? 回答1 jQuery.extend is used to extend any object with additional functions, but jQuery.fn.extend 阅读全文
posted @ 2021-01-07 11:00
ChuckLu
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Methods, Computed, and Watchers in Vue.js One of the reasons I love working with Vue is because of how useful methods, computed, and watchers are, and 阅读全文
posted @ 2021-01-06 19:35
ChuckLu
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Caution using watchers for objects in Vue Suppose we have an object and we want to do something when it’s properties change. Probably we’ll start with 阅读全文
posted @ 2021-01-06 19:23
ChuckLu
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How to Watch Deep Data Structures in Vue (Arrays and Objects) You have an array or an object as a prop, and you want your app to do something whenever 阅读全文
posted @ 2021-01-06 19:22
ChuckLu
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