Recent questions tagged Javascript

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javascript - Is it the filename or the whole URL used as a key in browser caches?

It's common to want browsers to cache resources - JavaScript, CSS, images, etc. until there is a new version ... instead and it is now cached? See Question&Answers more detail:os...

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

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451 views

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javascript - How to handle errors in fetch() responses with Redux-Saga?

I try to handle Unauthorized error from server using redux-saga. This is my saga: function* logIn(action) { ... errors right using Redux-Saga? See Question&Answers more detail:os...

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

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362 views

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javascript - (Web Audio API) Oscillator node error: cannot call start more than once

When I start my oscillator, stop it, and then start it again; I get the following error: Uncaught ... //jsfiddle.net/xbqbzgt2/3/ See Question&Answers more detail:os...

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

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359 views

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javascript - NPM start returns error, "There might be a problem with the project dependency tree"

I'm new to coding and having issues with why I can no longer get React set up correctly. I struggled last week ... but get the same issue...) See Question&Answers more detail:os...

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

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204 views

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javascript - Autorefreshing/updating table using jQuery ajax by either using json or html files

So @SOF, I've been trying to make my webpage of school grades, results, projected grades... etc have an ... continue to learn. Thanks Dennis S See Question&Answers more detail:os...

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

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202 views

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javascript - How to use React Router on top of Rails router (not using react-rails gem)?

Now i am making React app on top off Ruby on Rails app (with out react-rails gem) by using browserify-rails ... on top off Rails router? 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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javascript - Why won't my nested React components render?

I'm having a problem with my React component. The nested children of my component ControlPanel don't seem to be ... just won't work for me. See Question&Answers more detail:os...

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

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302 views

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javascript - jQuery Datatables Header Misaligned With Vertical Scrolling

I've posted this in the datatables.net forums, but after a week, still no response. Hopefully I can find help here... ... --> </tbody> </table> See Question&Answers more detail:os...

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

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191 views

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javascript - Why does local variable kill my global variable?

Sorry for this question, but this issue really screwed up my day. The following Code alerts 10 as it should: ... in conditions not even met? See Question&Answers more detail:os...

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

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261 views

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javascript - TypeScript require generic parameter to be provided

I have the following function: async function get<U>(url: string): Promise<U> { return getUrl<u>(url); } However, ... in get<User>('/user-url'); See Question&Answers more detail:os...

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

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190 views

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javascript - Find documents with array that doesn't contains a specific value

I have the following model: var PersonSchema = new Schema({ name: String, groups: [ {type: Schema.Types.ObjectId, ref ... : {$nin: [group._id]}) See Question&Answers more detail:os...

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

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394 views

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javascript - Removing leading whitespace from indented HTML source in pre/code tags

I currently have the following html within a pre-code block: <pre class="prettyprint"><code> <html> < ... there a more simple method. See Question&Answers more detail:os...

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

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301 views

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javascript - Destructure array to object property keys

I have an array of values like: const arr = [1,2,3]; Is there any way I can use destructuring to create the ... [one, two, three] = arr }; See Question&Answers more detail:os...

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

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227 views

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javascript - Firebase child_added for new items only

I am using Firebase and Node with Redux. I am loading all objects from a key as follows. firebaseDb.child(' ... to achieve this goal? 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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351 views

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javascript - jQuery .click function not working on < td > tag?

So I am creating a table using Javascript and jQuery, and I want it so that when you click the td's on the ... when I click a td. How come? See Question&Answers more detail:os...

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

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231 views

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javascript - IE9 throws exceptions when loading scripts in iframe. Why?

Precondition: I have an aspx-page with iframe inside. This iframe points to the url handled by MVC on the same ... errors. So, what IE9 wants? 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 - Backbone change model of View

I am fairly new to Backbone and have the following question: I have a collection of models. I have a collection ... is the best pratice here? See Question&Answers more detail:os...

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

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298 views

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javascript - How do I export an object in TypeScript?

For example, I'm trying to export a TS object to get this JavaScript output: const path = require('path'), ... expected. 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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565 views

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javascript - Nested tabs in bootstrap

I have nested tabs in Bootstrap, and here is the code: http://jsfiddle.net/RLdYC/ $("ul.nav-tabs a").click(function ( ... > </div> </div> </div> See Question&Answers more detail:os...

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

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400 views

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javascript - Using setTimeout to delay timing of jQuery actions

I am attempting to delay the swapping of text in a div. It should operate like a slider/carousel for text. I must ... DIV"> </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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216 views

1 answer

javascript - How to dynamically change CSS class of an HTML tag?

I am using JavaScript. I have a variable var boolVal that either evaluates to true/false. On my page, I have a ... "; or should we use AddClass? See Question&Answers more detail:os...

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

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251 views

1 answer

javascript - How do I remove :hover?

I have a small problem with a script. I want to have a default action on :hover for clients with Javascript ... this? I am using jQuery. See Question&Answers more detail:os...

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

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359 views

1 answer

javascript - jQuery select img with src

I want to select an image (with jQuery) by the src attribute. The Image is inside an ul and a collection of div' ... ; } so they find the image. See Question&Answers more detail:os...

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

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1.6k views

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javascript - Font-Awesome icon with an onclick event set

I am trying to use the following font-awesome icon <i class="fa fa-minus-circle"></i> as a delete icon ... , and not wrapped inside a button. See Question&Answers more detail:os...

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

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305 views

1 answer

javascript - Webpack: using require for ng-include

I'm new to webpack and right now I'm using it for the first time in one of my angular projects. I want ... html file. How to accomplish 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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352 views

1 answer

javascript - How to test child component method with Enzyme?

I have a component like that: <Parent> <Child/> </Parent> and <Child/> component have a method foo. I want ... <Child/>. Any idea with 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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311 views

1 answer

javascript - Check if an array of strings contains a substring

I have an array like this: array = ["123", "456", "#123"] I want to find the element which contains ... this array contain the substring "#"? See Question&Answers more detail:os...

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

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460 views

1 answer

javascript - Focusing div elements with React

Is it possible to focus div (or any other elements) using the focus() method? I've set a tabIndex to a div element: < ... </div> </div> ); } } See Question&Answers more detail:os...

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

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