Recent questions tagged Javascript

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javascript - Text wrap in a <canvas> element

I am trying to add text on an image using the <canvas> element. First the image is drawn and on the image ... point me at the right direction? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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375 views

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javascript - Validate Dynamically Added Input fields

I have used this jquery validation plugin for the following form. <script src="http://code.jquery.com/jquery- ... added inputs? Thank you... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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323 views

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javascript - Trigger autocomplete without submitting a form

I am writing a very simple web app with three text inputs. The inputs are used to generate a result, but ... instead of duplicating it by hand. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - RegEx to match stuff between parentheses

I'm having a tough time getting this to work. I have a string like: something/([0-9])/([a-z]) And ... through to create a URL routing scheme. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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270 views

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javascript - Difference between $.post and $.ajax?

Curious if anyone knows what the difference is in regards to the data parameter. I have a $.post method ... instead of the above .serialize? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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529 views

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javascript - Are arrow functions faster (more performant, lighter) than ordinary standalone function declaration in v8?

I am asking this question because I and my colleague have a dispute on coding style because he prefers arrows ... that penalties really exists? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How can I count the number of elements with same class?

I have a main div in my page with a specific id. Now some input elements of the same class are present in ... class in this div using jQuery? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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338 views

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javascript - Can I disable ECMAscript strict mode for specific functions?

I don't find anything about my question here on MDC or the ECMAscript specifications. Probably somebody knows a ... to achieve the opposite ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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272 views

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javascript - use jQuery to get values of selected checkboxes

I want to loop through the checkboxgroup 'locationthemes' and build a string with all selected values. So when checkbox ... How can I do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Download an image using Axios and convert it to base64

I need to download a .jpg image from a remote server and convert it into a base64 format. I'm using axios as my ... (err => console.log(err)); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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573 views

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javascript - Uncaught Error: Module did not self-register

I try to use node-vlc with nw.js (v0.12.0-alpha2). When i launch my app without nw.js it works, but when i ... me. I am on Ubuntu 14, 64-bit. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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344 views

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javascript - jQuery: checking if the value of a field is null (empty)

Is this a good way to check if the value of a field is null? if($('#person_data[document_type]').value() != 'NULL'){} Or is there a better way? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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292 views

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javascript - Capturing load event on LINK

I'm trying to attach an event handler to the load event of a link tag, to execute some code after a ... use any framework in solving this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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222 views

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javascript - Configuring HTTPS for Express and Nginx

I am trying to configure my ExpressJS app for https connection. The Express server runs at localhost: ... -with-express-e069c7abe625#.93jgjlgsc See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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298 views

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javascript - How to render part of a page with PhantomJS?

I would like to render individual HTML elements into PNGs using Phantom.JS. Does anyone know if this is possible ... user is already looking at? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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310 views

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javascript - Cross-domain connection in Socket.IO

Is it possible to use Socket.IO in a cross domain manner? If so, how? The possibility is mentioned around ... code examples are given anywhere. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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330 views

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javascript - Backbone: event lost in re-render

I have super-View who is in charge of rendering sub-Views. When I re-render the super-View all the events ... more. Check the working jsFiddle. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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248 views

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javascript - Should I use prototype or not?

I'm creating a Vector class, which can basically hold three numerical values. However, a lot of operations can be done on ... z * this.z); }; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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404 views

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javascript - Google MAP API v3: Center & Zoom on displayed markers

I use the following code to set markers on my map: var latLngs = [] $.each(locations.markers, function(i, m ... console. What am I doing wrong? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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246 views

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javascript - Sort an array of objects in React and render them

I have an array of objects containing some information. I am not able to render them in the order I want and I ... sort them before i use map? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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495 views

1 answer

javascript - Why does multiple modal using twitter bootstrap got error too much recursion?

I try to have a modal inside another modal. However, I got an error like too much recursion in firefox. I used ... know how to fix it? Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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616 views

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javascript - How to open specific tab of bootstrap nav tabs on click of a particuler link using jQuery?

I am new to jquery and bootstrap,so please consider my mistakes.I have created a bootstrap modal for login and ... .Thank you in advance ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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427 views

1 answer

javascript - Does scrollIntoView work in all browsers?

Does scrollIntoView() work in all browsers? If not is there a jQuery alternative? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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320 views

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javascript - Vue.js: Conditional class style binding

I have some data that is accessible via: {{ content['term_goes_here'] }} ... and this evaluated to ... to conditionally determine the class? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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318 views

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javascript - How to make jQuery to not round value returned by .width()?

I've searched around and couldn't find this. I'm trying to get the width of a div, but if it has a decimal ... 543.5 (or whatever number it is). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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303 views

1 answer

javascript - MongoDB select where in array of _id?

is possible in mongo db to select collection's documents like in SQL : SELECT * FROM collection WHERE _id IN ( ... the array/object of results? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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384 views

1 answer

javascript - comparing 2 strings alphabetically for sorting purposes

I'm trying to compare 2 strings alphabetically for sorting purposes. For example I want to have a boolean ... this in jquery or Javascript? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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323 views

1 answer

javascript - Shallow-clone a Map or Set

How do you shallow-clone a Map or Set object in JavaScript? I want to get a new Map or Set that has the same keys and values. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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