Recent questions tagged JavaScript

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javascript - regex - get numbers after certain character string

I have a text string that can be any number of characters that I would like to attach an order number to ... I foresee failure and confusion. See Question&Answers more detail:os...

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

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215 views

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javascript - Query Wikipedia's API using AJAX (XMLHttpRequest)

I am trying to implement a simple request to Wikipedia's API using AJAX (XMLHttpRequest). If I type the url in ... request. Help! (and 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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255 views

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javascript - Different behavior of blur event in different browsers

Consider this example where I have 2 input fields: <input id="a" /> <input id="b" style="display: none" /> And ... =b> <br/>^ focus on the input 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 - How to bind "mobileinit" event in jQuery Mobile?

This is how I'm trying to hook into the mobileinit event: $(document).bind("mobileinit", function() { console.log(" ... .1 and 1.1.0) failed. See Question&Answers more detail:os...

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

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321 views

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javascript - Chart.js line chart is cut off at the top?

For some reasone all graphs are cut off at the highest value. How can i fix this? I can't use a fixed y-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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268 views

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javascript - Angular directive with ng-repeat, ng-show "Show more" and lazy-load

I use this directive, iterating over an array "myArr", filtering for a few conditions. <myDirective myData='item' ... Thanks a lot 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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javascript - Angular 6 Reactive Forms : How to set focus on first invalid input

Under my Angular 6 app , i'm using Reactive Forms . My purpose is when submitting , i want to set focus ... but that didn't work Suggestions? 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 - Will Function.prototype.bind() always be slow?

I am writing an open source javascript library, and I use .bind() method heavily, because I have ... because of JavaScript architecture limits? 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 - Adding a script to the page dynamically with jQuery never uses the cached file

I am using jQuery to dynamically add a script to my page and it works, but jQuery appends "_=TIMESTAMP" to ... jQuery not to do this? 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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257 views

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javascript - Socket.io + NodeJS doesn't work on Heroku

I am doing an API and it's on Heroku. But I am having some problems with the socket.io only on the heroku ... the sockets work fine. Thank you. See Question&Answers more detail:os...

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

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310 views

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javascript - Make the X-Axis labels in chart.js increment by a certain scale

I have labels ranging from 50-90, and every number in between in displayed. I would like to list the labels by 5 ... part of the y-axis cut off. See Question&Answers more detail:os...

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

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306 views

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javascript - Adding inline styles to react

Currently I'm using react.js and I'm trying to get two div's to be side by side. Currently I'm trying ... to play nice with other div elements. See Question&Answers more detail:os...

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

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207 views

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javascript - jQuery image map alternative

What is an alternative to using image maps? I saw a question recently and someone said, "Why are people still ... to use than an image map. See Question&Answers more detail:os...

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

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341 views

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javascript - What is faster: try catch vs Promise

I heard such an opinion that you should avoid usage of try/catch at all because it takes many resources. So ... jsperf.com/try-catch-vs-promise 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 - Chaining promises with RxJS

I'm new to RxJS and FRP in general. I had the idea of converting an existing promise chain in my ExpressJS ... console.log('Completed'); }); See Question&Answers more detail:os...

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

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246 views

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javascript - How to Associate an Object with a DOM Element

I have a master object in my JS setup, i.e.: var myGarage = { cars: [ { make: "Ford", model: "Escape ... " flag, I can update the master object? See Question&Answers more detail:os...

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

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280 views

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javascript - async.eachSeries in node.js

I have a loop in node.js for (var i in files){ var all = fs.readdirsync("./0"); async. ... iteration is finished (including the callback)? See Question&Answers more detail:os...

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

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395 views

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javascript - Is there a simple way to convert a decimal time (e.g. 1.074 minutes) into mm:ss format using moment.js?

I was wondering if there's a simple way, using moment.js library, to transform a decimal time interval (for example, 1. ... "0" + sec : sec) } See Question&Answers more detail:os...

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

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288 views

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javascript - How to determine the direction on onmousemove event?

On some condition I want to cancel onmousemove event when mouse goes down, for example. Is it possible to ... such kind of standard properties. See Question&Answers more detail:os...

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

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188 views

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javascript - Cannot call 'start' of undefined when starting backbone.js history.

I get Cannot call 'start' of undefined when calling... Backbone.history.start() When running some checks Backbone ... the cause of this? 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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475 views

1 answer

javascript - How do I disable drag and drop in fullcalendar

I am using FullCalendar throughout my project and i need to display it in one area of my site where events are ... month view. Any ideas please. See Question&Answers more detail:os...

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

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1.0k views

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javascript - How to fix Error: Not implemented: navigation (except hash changes)

I am implementing unit test for a file that contain window.location.href and I need to check it. My jest ... then check string and return error See Question&Answers more detail:os...

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

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523 views

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javascript - HTML5 <input type=“date”> - onChange Event

Is possible to detect in event onChange for <input type= date >, when user using graphical calendar and ... interested in VanillaJS solutions. See Question&Answers more detail:os...

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

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228 views

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javascript - Why does $("body") == $("body") return false?

How come the equation in the title is false? How do check if two jQuery selectors point to the same DOM object? See Question&Answers more detail:os...

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

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280 views

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javascript - Regular Expression For At Least One Number

How would you create a regular expression for a value that should contain at least one number? The user can enter ... 6,20} Neither are working. See Question&Answers more detail:os...

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

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579 views

1 answer

javascript - Sequelize update with association

In sequelize it's possible to create a row and all it's association in one go like this: return Product.create( ... , include: [model.profile]}) See Question&Answers more detail:os...

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

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212 views

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javascript - jQuery - equivalent to each(), but for a single element

What's the jQuery equivalent for each(): $(".element").each(function(){ // do stuff }); when attaching ... to a single element, like #element ? See Question&Answers more detail:os...

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

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686 views

1 answer

javascript - How to correctly use Vue JS watch with lodash debounce

I'm using lodash to call a debounce function on a component like so: ... import _ from 'lodash'; export ... And what is the correct usage? See Question&Answers more detail:os...

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

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