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Submission: On January 12 via manual from CH — Scanned from DE
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<form method="post" action="./"> Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share <input name="notice_visitor" onclick="return qa_notice_click(this);" type="submit" value="X" class="qa-notice-close-button">
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<span class="qa-q-item-where-pad">分类:</span><span class="qa-q-item-where-data"><a href="./?qa=Others" class="qa-category-link">Others[杂七杂八]</a></span><span class="qa-q-item-where-pad"> | </span>
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<a href="./?qa=64524/"><span title="Welcome to developer's Knowledge Sharing Community-Open, Learning,Share 欢迎来到 程序员专属的知识分享社区! 一个分享知识，传递知识，学习知识的社区！">Welcome to Our Knowledge Sharing Community-Open, Learning,Share</span></a>
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<span class="qa-q-item-when-data">1月 27, 2021</span>
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<span class="qa-q-item-where-pad">分类:</span><span class="qa-q-item-where-data"><a href="./?qa=questions/Technique" class="qa-category-link">Technique[技术]</a></span><span class="qa-q-item-where-pad"> | </span>
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<a href="./?qa=19980/"><span title="I have an expensive initialization op before I perform my calculation in tensorflow. My code looks something like this: x = tf.Variable(2.0) w = tf.Variable(5.0) with tf.GradientTape() as tape: tape.watch(x) tape.watch(w) y = x ** 2 z = w ** 3 o = tf.math.log(y*z) # note that this step is the ... df,dg]) I don't understand this behavior - surely the tape is being discarded after each iteration of the loop (and thus it shouldn't matter if it was persistent or not)? Thanks"> python - How do I make a copy of a GradientTape object in tensorflow? (Monte Carlo App) </span></a>
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<span class="qa-q-item-where-pad">分类:</span><span class="qa-q-item-where-data"><a href="./?qa=questions/Technique" class="qa-category-link">Technique[技术]</a></span><span class="qa-q-item-where-pad"> | </span>
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<span class="qa-q-item-who-pad">用户:</span>
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<a href="./?qa=20010/"><span title="最近在vue的实战中，发现一个问题 子路由的页面中如果存在<router-view />，我在进行页面切换的时候，order.vue页面不会被缓存 当我把order.vue注释掉之后，order.vue中的时间又可以被缓存了 router.js const routes = [ { path: '/', name: 'Home', component: () => import('../views/Home.vue'), children: [ { path: 'order', name: 'order', component: () => import('../views/order.vue'), ... inRouter() { this.$router.push({ path: "/order/order-time", }); }, } }; </script> mine.vue <template> <div class="mine"> 我的页面 {{ new Date().getTime() }} </div> </template>"> vue中为什么页面被包含<router-view />,keep-alive就会失效 </span></a>
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<span class="qa-view-count-data">55</span><span class="qa-view-count-pad"> 浏览</span>
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<div class="qa-q-list-item" id="q19302">
<div class="qa-q-item-main">
<div class="qam-q-post-meta">
<span class="qa-q-item-avatar-meta">
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<span class="qa-q-item-when-data">1月 27, 2021</span>
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<span class="qa-q-item-where-pad">分类:</span><span class="qa-q-item-where-data"><a href="./?qa=questions/Technique" class="qa-category-link">Technique[技术]</a></span><span class="qa-q-item-where-pad"> | </span>
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<a href="./?qa=19302/"><span title="小程序代码如何实现ctrl+f搜索定位功能， 如下图 就是一片文章，上面有个搜索框，例如我输入222，就把文章里面包含222的高亮出来并且滚动到改位置 。就想pc浏览器的ctrl+f功能"> 小程序代码实现ctrl+f搜索定位功能 </span></a>
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<span class="qa-q-item-when-data">1月 27, 2021</span>
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<span class="qa-q-item-where-pad">分类:</span><span class="qa-q-item-where-data"><a href="./?qa=questions/Technique" class="qa-category-link">Technique[技术]</a></span><span class="qa-q-item-where-pad"> | </span>
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<span class="qa-q-item-who-pad">用户:</span>
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<a href="./?qa=18196/"><span title="I am trying to get remote host value which is remotehost . I decoded the json and able to get $name and $id values. but getting Bad index while coercing array into hash while accessing 'remote -> host value which is remotehost. my $json input is [ { "auth":{ "req": "1234", "link": "http://localhost" }, "host": "localhost", "name": " ... %obj = %{$_}; my $id = $obj{'auth'}{'link'}; my $name = $obj{'name'}; my $remotehost = $obj{'auth'}->{'remote'}{'host'}; #getting error }"> How to get perl json access hash reference </span></a>
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<li class="qa-q-item-tag-item"><a href="./?qa=tag/%09How" class="qa-tag-link"> How</a></li>
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<span class="qa-q-item-what">最新话题</span>
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<span class="qa-q-item-when-data">1月 27, 2021</span>
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<span class="qa-q-item-where-pad">分类:</span><span class="qa-q-item-where-data"><a href="./?qa=questions/Technique" class="qa-category-link">Technique[技术]</a></span><span class="qa-q-item-where-pad"> | </span>
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<a href="./?qa=17644/"><span title="I have started implementing linked list in python , I was able to create a traverse method and how to insert in the beginning of list method but while implementing this method of insertion of a node after a specific node , I have observed a code online that uses prev_node as one of the parameters including data ... : """ add data after the specific node """ new_node=Node(data) new_node.pointer=prev_node.pointer #Here is the part I do not understand prev_node.pointer=new_node"> list - Not sure how a node is passed as parameter in LinkedList instance method in python </span></a>
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<span class="qa-q-item-when-data">1月 27, 2021</span>
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<span class="qa-q-item-where-pad">分类:</span><span class="qa-q-item-where-data"><a href="./?qa=questions/Technique" class="qa-category-link">Technique[技术]</a></span><span class="qa-q-item-where-pad"> | </span>
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<a href="./?qa=17548/"><span title="创建一个react项目无法创建成功，一直抱这个错，有大神知道什么原因吗？ 图片 详情 npm ERR! code 1 npm ERR! path /Users/caijizhou/Documents/reactdemo/demo/node_modules/canvas npm ERR! command failed npm ERR! command sh -c node-gyp rebuild npm ERR! /bin/sh: pkg-config: command not found npm ERR! gyp: Call to 'pkg-config pixman-1 --libs' returned exit ... gyp -v v3.8.0 npm ERR! gyp ERR! not ok npm ERR! A complete log of this run can be found in: npm ERR! /Users/caijizhou/.npm/_logs/2020-11-07T03_16_50_623Z-debug.log"> 创建react项目抱的错误，完全没见过 </span></a>
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<a href="./?qa=17310/"><span title="I use Google Chrome on Ubuntu. When I start with command line --user-data-dir= to create a new profile "make as default browser and send statistic" window has appeared before the main chrome window starts. Is there a command line to prevent show this ask window? I tried the following options, but no effects: --no-default-browser-check --disable-breakpad --disable-infobars"> Chrome ubuntu, command line to prevent ask to make as default browser and send statistic </span></a>
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<a href="./?qa=17382/"><span title="I'm currently facing some problem I'm using in my react native app https://github.com/goatandsheep/react-native-dotenv for handling .env. Error => Cannot find module '@env' from 'src/api/api.ts' I'm testing currently my redux saga to call the api endpoint: import axios from 'axios'; import {API_URL} from '@env'; export default axios.create({ baseURL: ... [ "ts", "tsx", "js" ], "modulePaths": [ "<rootDir>/src" ], "testRegex": "(/__tests__/.*|\.(test|spec))\.(ts|tsx|js)$" }"> reactjs - Jest cannot find module @env React Native </span></a>
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<a href="./?qa=16503/"><span title="业务中遇到资源分配，资源计算的要求；先把资源计算出来，然后才能继续分配 // tool.js export function executeResouce(arg) { return resouce } export function assign (resouce) { } // 业务代码 const resouce = executeResouce(arg); const resource = assign(resouce); 另一种方式 // tool.js export function executeResouce(arg) { return resouce } export function assign (resouce) { const resouce = executeResouce() // ... return } // 业务代码 const resource = assign(arg); 这两种代码组织方式那种更好呢？为什么"> js编程范式的问题。 </span></a>
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<a href="./?qa=16609/"><span title="Exaple of answer: if(player has clicked && item in player right hand is stick) { // Do some action } Thanks in advance"> Spigot/Bukkit Plugin: How to Me Check Item in Player Right Hand? - Minecraft </span></a>
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<a href="./?qa=15893/"><span title="我在读这篇文章的时候： MVC的互动模式： 1） 2） 我可以理解第一个，但是怎么理解第二个图？ 如果是Restful API，那么也没有View的参与呀。"> MVC模式的互动模式。 </span></a>
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<a href="./?qa=14830/"><span title="antd 表格带有children 的树形表格，无法排序，官网demo 例子不支持且文档不说明，请问下大家有什么好的解决办法吗？"> antd 表格拖拽排序问题 </span></a>
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<a href="./?qa=12590/"><span title="我有 A,B 两个缓存组件 <keep-alive> <router-view/> <keep-alive> A 页面有一个 el-modal框(遮罩层必须保留),modal 框中有个按钮 button 跳转到 B 此时 B 也同时出现的遮罩层... 目前实现的方案是 记录下 A 遮罩层的状态,然后点击 button 关闭遮罩层 跳转 B 然后跳转回A 的时候 每次就重新判断状态 打开还是关闭. 这个方案感觉不是很通用,每个页面都需要加入对应的逻辑 请教大佬 有没有通用的解决方案~~~"> 关于 keep-alive 的路由跳转后存在 遮罩层的问题 </span></a>
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<a href="./?qa=12372/"><span title="比如项目依赖a b c 三个npm包（都是自己写的） 这3个包都是用的es6+编写的 每个包通过各自babel编译后生成dist/index文件作为包的入口，例如： "main": "dist/index.js", 那么每个index.js其实都包含了babel的添加的兼容代码（core3大概60k） 导致现在我的项目因这3个包多了60*3K代码，其中有60*2k代码是多余的 大神们，请问如何避免多增加120k代码？？？"> 当项目使用多个npm包，如何解决babel代码重复问题？ </span></a>
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<a href="./?qa=12215/"><span title="正常情况下如下图，点击按钮第二个蓝色色块显示 但在某些ios机型下点击按钮并不显示第二个色块 具体定位方式为： body fixed定位，body下面有一个相对定位元素 相对定位元素内有两个dom，为 dom1, dom2， 每个dom都是绝对定位，切其内含有一个fixed定位元素content 默认dom2显示，dom1隐藏， 由按钮控制dom1的显示， 此操作在部分ios下却失效，点击按钮dom1并不显示 如果改变以下条件之一，都可以正常显示dom1: 去掉body的fixed定位 ... > </div> <script> var btn = document.getElementById('btn'); btn.addEventListener('click', function(){ document.querySelector('.dom1').style.display = 'block'; document.body.style.position = 'fixed'; }) </script> </body> </html>">部分ios fixed定位导致dom元素不显示是怎么导致的呢？</span></a>
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<a href="./?qa=6628/"><span title="<template> <div style="background-color: #EBEBEB;min-height:900px"> <div style="width:100%;background-color: #636363; overflow: hidden"> <span class="demonstration" style="float:left;padding-top:10px;color:white;margin-left:1%"> 系统首页 </span> <span class="demonstration" style="float:left;padding:5px;color:white;margin-left:2%;width ... -container { box-sizing: border-box; /*background: blue;*/ padding-right: 50px; overflow: hidden; } .side-bar { overflow-y: hidden; } </style>"> 使用el-submenu标签，点击后样式会突出一块，请问怎么设置才能不突出？ </span></a>
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