Recent questions tagged javascript

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javascript - jQuery and appending large amounts of HTML

I have come to find that using jQuery to create HTML client-side can be a huge performance booster if done ... large sets of dynamic HTML? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - REACT: Map over nested array of objects

I am trying to map over array of objects which each array contains another nested array of objects. However, the map does not ... <hr /> ); })} See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Readonly input box bug in Internet Explorer

I've got a strange bug, well, MSIE does. Seems it is failing on all major MSIE versions: 6, 7, 8 and ... at least try the code before answering! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - firebase.database.ref is not a function error

I am trying to read/write data from my database, but I always get this error: firebase.database.ref is not a ... above. What am I doing wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Finding minimal distance between unsorted and sorted lists

Let A be a list and S a sorted list of the same elements. Assume all elements are different. How do I find ... python, but any language will do. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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465 views

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javascript - Only in Chrome (Service Worker): '... a redirected response was used for a request whose redirect mode is not "follow" '

When I refresh (or go offline) in Chrome then I get "This site can't be reached" and the following logged to ... return response }) }) ) }) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - JS object copy by value vs copy by reference

I was playing with chrome console and noticed something which I couldn't understand. I know in JS variables are copied ... 't this be 2 ?? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - converting canvas to blob using cropper js

I have created an application using cropper.js for cropping an images. The application is working and the image is ... ', canvas.toBlob()); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Initialize a Moment with the timezone offset that I created it with

I'm using moment and moment-timezone in javascript, and this part of it is one of the most unintuitive API's I' ... in the string i passed in? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - chart.js Line chart with different background colors for each section

Lets say I have a Line chart with mon-fri for 4 weeks. I want that these 4 weeks are diveded in sections. I want ... Is there a way to do this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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175 views

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javascript - React, "this", cloneElement and es6

I am wondering how ES6 and cloneElement works when you pass it a function. I need to reference state in the parent ... } render(){...} }; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Error: No response has been set. Cloud Functions for Actions on Google Assistant

I am building an Assistant app for Google Home, using Dialogflow, Cloud Functions and the new NodeJS Client ... very much appreciated. Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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293 views

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javascript - Is Content-Disposition attachment blocked from XMLHttpRequest?

I want to perform a javascript xhr request for a png file from a C# webserver which I wrote. Here ... ("Warning","AttachmentRequest"); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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195 views

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javascript - Google Maps Geocoding a string

I have done the geocoding example at: https://developers.google.com/maps/documentation/javascript/examples/geocoding-simple ... </body> </html> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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273 views

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javascript - Angular UI-Router dynamic routing based on slug from API Ajax Call. Load view based on slug

Examples slugs in server database accessible through API: {slug: "john-smith",type: "user"} {slug: "microsoft-technologies ... }) return } } }) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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120 views

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javascript - How to set a static minimum value for axes in Highcharts

I have time-based data that ranges from 1 to 500. Time is plotted on the x axis and the values are on ... the dataset (relative to its axis). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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115 views

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javascript - JS function when keyboard key is pressed?

Is there a way to run a JavaScript function when a key is pressed and released? For example, how would I run a ... a <script> in the <head>? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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122 views

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javascript - Wait for document.body existence

I wrote a Chrome extension that works before the page is loaded (using the attribute "run_at": "document_start") ... other non built-in library. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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345 views

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javascript - how to make window.open pop up Modal?

I am currently using window.showModalDilog to open a modal pop up window which is not allowing the parent window ... solve 80 percent problem. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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377 views

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javascript - Regex matching emoticons

We are working on a project where we want users to be able to use both emoji syntax (like :smile:, :heart: ... here: http://regexr.com/3a8o5 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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117 views

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javascript - How to display alternative route using google map api

I am using google map and i am bit of stuck at one point. i want to display alternative route for my ... for your help and much appreciated See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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314 views

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javascript - Make an html5 video buffer less before playing

When someone clicks to watch a video on my site (mp4 in an Html5 video tag) - the browser buffers a lot of ... browsers not to buffer so much? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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455 views

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javascript - How does .then(console.log()) and .then(() => console.log()) in a promise chain differ in execution

Is there any difference in efficiency? Will the behavior be any different if a setTimeout is used instead of console.log() See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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javascript - How can I create a canvas imageData array from an arrayBuffer representation of a JPG

First of all I am aware there are standard methods of achieving this (readAsDataURL and drawImage), but ... putImageData Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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147 views

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javascript - React App not starting in azure app service

I've deployed a simple react app to azure app service and it won't start: How do I get the app to run index.html? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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214 views

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javascript - Vuejs Share Data Between Components

I have two components: App.vue Sidekick.vue In my App.vue component, I have a property that I would like ... gets rendered when we hit /sidekick See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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262 views

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javascript - Get frame change in video HTML5

I need detect all frames changes of a video in HTML 5, i tried the follow code, but i can't get all ... problem? Sorry my english regards Alex See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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240 views

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javascript - How do I enable touch on multiple buttons simultaneously in react native?

I need that when I am touching and holding one button then I should also be able to touch on the button 1 ... /View> </TouchableOpacity> </View> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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