Recent questions tagged JavaScript

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javascript - Load an image through jQuery Ajax

I am creating an application which browses a large amount of pictures. At this point, that portion of the ... .com/03tvpNey Regards, Emanuel See Question&Answers more detail:os...

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

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546 views

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javascript - Trying to understand index signatures in TypeScript

I think I basically got how index signatures work in TypeScript. However, there is one thing I don't get. Given ... string ]: T | undefined }? See Question&Answers more detail:os...

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

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759 views

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javascript - jQuery Chosen - update select list without losing selections

I'm trying to use jQuery plugin "Chosen" (http://harvesthq.github.com/chosen/ and https://github.com/harvesthq ... getting SELECT "value" data. See Question&Answers more detail:os...

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

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656 views

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javascript - Execute php file with Ajax

When I click on "Register Now" Button, I want to execute 'input.php' in which I have code to insert ... necessary data is in session variables. See Question&Answers more detail:os...

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

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710 views

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javascript - Is it possible to access a function local variable from outside of the function?

I heard today that "it is possible to access a local variable of a function since everything in javascript is ... the function looks like... See Question&Answers more detail:os...

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

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544 views

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javascript - Putting text in a number input doesn't trigger change event?

example It appears that entering text into <input type="number"/> does not trigger a change event. I would like a ... : <input type="number"/> See Question&Answers more detail:os...

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

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801 views

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javascript - Make leaflet layers control with checkboxes, not radio buttons?

Is there an easy way to make a leaflet layers control (L.control.layers) use checkboxes rather than radio ... multiple L.tileLayer.wms layers. See Question&Answers more detail:os...

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

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596 views

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javascript - AWS S3 browser upload using HTTP POST gives invalid signature

I'm working on a website where the users should be able to upload video files to AWS. In order to avoid ... want the signature in all lowercase. See Question&Answers more detail:os...

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

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587 views

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javascript - Table Tag Not Nesting Inside P Tags In DOM

I have been playin with dynamic changes to innerHTML content and have noticed some strange behaviour with tables nested ... in my knowlegde? TIA 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 - Replace nth occurrence of string

For example: 'abcjkjokabckjk'.replace('/(abc)/g',...) If I want to replace a specify position 'abc', what I can do? Like 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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578 views

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javascript - Create a class with IIFE that isn't a reference?

I'm new to JavaScript and I'm trying to wrap my head around creating "classes" with private data and public ... , or is there another way? See Question&Answers more detail:os...

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

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750 views

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javascript - How long polling works

I am studying the ajax long polling but I am confused. what is different in traditional ajax calls and ... traditional call in setInterval.. See Question&Answers more detail:os...

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

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605 views

1 answer

javascript - __proto__ doesn't seem to work after a null assignment - bug or feature?

I have observed a behaviour regarding __proto__ which seems weird to me: when changing __proto__ to various ... how other browsers react. See Question&Answers more detail:os...

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

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608 views

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javascript - How to use HTML forms without a server

I am not a web-developer and want to understand the better way to pass variables. In the past I have ... contents to the javascript function? See Question&Answers more detail:os...

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

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749 views

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javascript - Why does map mutate array of objects?

Might be a stupid question, but why does map mutate array of objects. var obj = { items: [{ value: 1, selected: ... i; }); console.log(obj); 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 - What does $scope.$apply() do?

I've been using $scope.$apply() to update the bindings for my models when I receive data through websockets in ... called to achieve the update? See Question&Answers more detail:os...

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

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743 views

1 answer

javascript - "Bad value for attribute src on element img: Must be non-empty", for dynamically generated img src

I have a web site with an image slider. I keep the some of the image tags empty as the images load ... possible harmful outcomes of this matter? See Question&Answers more detail:os...

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

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816 views

1 answer

javascript - How to parse/trim email addresses from text

Similar to this question, but not sure how to implement in this case. A trusted user (don't need to ... .com, [email protected], [email protected] See Question&Answers more detail:os...

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

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559 views

1 answer

javascript - Posting/submitting multiple forms in jQuery

I have two forms on a page (one is being grabbed by AJAX). I need them both to be posted, so I ... had a similar problem. Much 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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695 views

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javascript - Angular Binding to a function on the view results to infinite calls to the data service

I'm trying to bind a src attribute of images inside an ngFor directive that looks like this: <div *ngFor="imageId ... what I'm 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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624 views

1 answer

javascript - Way to determine checkbox checked in react (useState)

This is my first time to develop a react application. I tried to implement checkboxes in each row of ... (row.original.transaction_seq) } See Question&Answers more detail:os...

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

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1.4k views

1 answer

javascript - CSS/html display list in two columns if more than X amount of elements?

I have a dynamic list of elements. I do not want this list to be too long. I could use: ul { columns: 2; ... tips for the best 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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654 views

1 answer

javascript - MVC3 unobtrusive validation: how to remove/re-attach validation from a group of elements?

Here's the use case: I have this long form with group of field that only becomes visible if the user makes ... the click and the validation run. See Question&Answers more detail:os...

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

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825 views

1 answer

javascript - How can I render a JS template from a rendered HTML template?

If I'd like to generate JavaScript code, and not just HTML, through Jinja2, am I stuck with keeping the ... you're rendering an HTML template? See Question&Answers more detail:os...

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

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662 views

1 answer

javascript - Adding a csv file to a webpack build

I have placed a csv file in my assets folder for my react app, however, that file is not getting picked up and ... ] }; module.exports = config; See Question&Answers more detail:os...

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

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680 views

1 answer

javascript - window.location.hash issue in IE7

We have a javascript function that should "move" a page to a certain position using anchors. This function just ... to deal with this 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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567 views

1 answer

javascript - Send information about clicked link to the server before redirect

We're creating a click tracking app, that builds heatmaps. I'm writing a script which users are suppose to ... anyone have any other ideas? See Question&Answers more detail:os...

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

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832 views

1 answer

javascript - MediaSource randomly stops video

I am working on a project where I want to getUserMedia -> MediaRecorder -> socketIO -> MediaSource appendbuffer I got ... .log(err); } ); See Question&Answers more detail:os...

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

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