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![让第一个可获得焦点的元素获得焦点]()
让第一个可获得焦点的元素获得焦点 window.CommonUtil.toFocusChildNode = function (elements) { // e.g. // elements = [ // '.common-content .****', // '.common-content', // ]; let focusEle = null; for (let item of elements) { let focusable = $(item).find(':focusable:visible:not(:disabled):not([aria-disabled="true"]):not([tabindex="-1"])'); if (focusable.length > 0) { focusEle = focusable[0]; break; } } focusEle && focusEle.focus(); } -
![React componentWillUnmount 清除异步state操作]()
React componentWillUnmount 清除异步state操作 React componentWillUnmount 清除异步state操作 Can’t perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in the componentWillUnmount method. 原因： 通常是 react 组件已经从 DOM 中移除，但是我们在组件中做的一些异步操作还未结束，如：接口调用等，当其完成时，执行setState操作，而此时我们已经将改组件dom移除，从而导致上述问题。 解决办法： componentWillUnmount() { this.setState = (state, callback) => { return; } } -
IELTS 雅思口语笔记 - 2 IELTS 雅思口语笔记 - 2 不懂一定要问考官：sorry， what do u mean by that？ Do u like... ? Do u often do sth..? DO / Have / Is / Are 第一步：需要正面回应 肯定答案： yes + 细节和例子 + 解释感受 yes， sure/yes， absolutely / that's a big yes / no doubt about that / well， I like to say so well， I don't hate sth（适合表达不确定喜不喜欢的奇怪的东西） 否定答案： no + 原因解释 + 其他个人选择 Not really / No, I don't think so / No, I'm afraid not. / Quite the opposite Even if If I had more free time ... 喜欢与否？ I'm pretty into... I'm quite big/keep on... ...is surely my thing. I can never/don't usually say no to I've had enough of ... = I'm so sick of ... 受够了 ... is the real pain in the neck. 让人头疼的事 解释说明 Because + 句子 Because of + 名词成分 As/for/since + 句子 The main/major reason is... It's simply/actually/basically/mainly because... ......and that's exactly/partly why...... Did u ... when u were yang ? Yes, kind of. When I was 5 or 6, I spent a lot of time on doing sth Have/had a great time Wh-列举 （be/how）what kind of ...? Basically,... 最常见的清形； plus/also/on top of that/apart from that,.. 第二选项 Generally speaking/ most of the time,... 最常见的情形，At the same / from the time to time ... 第二选项 Well, mostly, the first one I like to....is A, because...other than that,... When was the last time u did ... Speaking of this, it brings my memory back to the time when I was doing ....时间较近的情形 Well, let me see, at about this time yesterday / last Sunday / Friday / month, I was doing ...时间较远的情形 后面 + 评价心情，态度 splendid / sensational / make my day Have u ever done ... ? 过去进行时 虚拟语气 Yes/ I have / No, I haven't If I could, I'd love to If that was the case, I'd be over the moon 肯定 + 过去进行时 否定 + 虚拟语气 不确定的未来 Would u like...? Do u like to be...? Wow, let me think, hmmm, the answer would be yes/no If that was the case, I'd be over the moon. 二选一 Do u like/prefer A or B? Which one do u prefer, A or B? Well, it depends / I'm not sure / I don't know. (Nether of them in fact.) Between the two, I'd go for + 比较级 Personally， I'd believe ... sounds like a much better choice to me. Comparatively speaking, it seems to me that... is like a more reasonable / sensible / preferable option. / .... is my preference. 最 Do u have a favorite ...? What's the most ... Favorite / the bast The best / the most popular / the most important... Favorite If u ask me,... will have to be my first choice. Since you asked, I believe ...is absolutely at the top of my favorite list. If I have to take a pick, I guess no one compares to ......
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IELTS 雅思阅读笔记 - 2 （7种填空题1-4） IELTS 雅思阅读笔记 - 2 （7种填空题1-4） 填空题（7种） 1，表格题(table) 特征： 原词填空原则（适用于所有填空题） 遵循语法原则（适用于所有填空题），95%有顺序性 （乱序一般在第三篇） 解题步骤 读请题干，确认字数限制 观察表格 观察表头 画出定位词（空前空后） 预测空格词性和内容（n. adj. adv. v. 数字） 回原文定位，根据预测找答案 2，流程图（flow-chart） 特征： 100% 有顺序性 100% 集中出题 解题步骤 整体定位： 原文某段首句一般出现：process , procedure, stage, step, phase 用题目中的特征定位词（大写，缩写，数字） 3，图形题（diagram） 特征： 100% 集中出题 偶尔出现小范围乱序 解题步骤： 整体定位：用题目中的特征词定位（大写，缩写，数字） 4，笔记题（notes） 特征： 100%有顺序性 有时集中出题（看是否有小标题） 解题步骤： 如果有小标题，且小标题不是主题词，先尝试整体定位 按板块分类分析题目
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IELTS 雅思阅读笔记 - 1 IELTS 雅思阅读笔记 - 1 雅思阅读基础知识 1，基础介绍 60 time 3 parts questions 1000 words 文章来源 2,文章题材 文章体栽有： 说明文，议论文 文章总体结构为： 总 => 分 => 总 3,雅思阅读题型 题型 出题占比 判断 28% 匹配题 18% 选择题 12% 段落主旨搭配题 11% 摘要题 11% 图表题 10% 补全句子+简单题 10% 4，雅思阅读考点 词汇 语法 句子主干提取 同位语，插入语的阅读 后置定语的翻译 逻辑关系 因果关系 特殊的因果关系： ignite / trigger / incur / stimulate / breed / prompt 并列关系 举例关系 对比关系 比较关系 同义替换 同义词 近义词 句意转换 结构转换 5，必备能力 skiming 略读 15% theme 文章主题 scanning 扫读 85% 定位 补充 否定词 ignore - neglect - overlook - take no notice miss,avoid,lack,fail Fail to do sth 未能做某事
