Recent questions tagged Javascript

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javascript - How to rotate one image in a canvas?

I am making an HTML5 canvas game, and I wish to rotate one of the images. var link = new Image(); link.src=' ... one sprite. How do I do that? See Question&Answers more detail:os...

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

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558 views

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javascript - HTML + React: Radio button stuck on the one initially set as "checked"

I have a set of two radio buttons one of which is checked when the page is loaded. It appears that I can't change ... 1.1"> </label> </fieldset> 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

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javascript - Argument type Number is not assignable to parameter type String|Function

var str = name.toUpperCase(); var ch = new Array(); ch = str.split(''); for(var i=0;i<7;i++) ... just making a dumb mistake. 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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javascript - Difference between the static and instance sides of classes

I am trying to understand interface topic in Typescript when I came across Class type, I got this code ... explanation would be 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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367 views

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javascript - angular js adding two numbers issue

I have this code using angular js: <!DOCTYPE html > <html> <head> <title>Untitled Page</title> <script type="text ... 7) 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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480 views

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javascript - How to detect left click anywhere on the document using jQuery?

I have this right now: $(document).click(function(e) { alert('clicked'); }); In Firefox, this event ... , which is browser-dependent? 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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494 views

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javascript - Need to break out of iframe after content in iframe is submitted

Ok, I am using an iframe on a page. The content within the iframe I have no control over and is being ... not the iframes content. 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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1.8k views

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javascript - Webpack 4 - Module parse failed: Unexpected character '@'

I recently upgraded from Webpack 3 to 4. It's now throwing an error: Module parse failed: Unexpected character ... --mode production" }, See Question&Answers more detail:os...

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

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387 views

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javascript - Why does jQuery .after() not chain the new element?

I am curious why jQuery's .after() does not chain, or "provide you with," the new element that you ... than that. Thanks for any thoughts. See Question&Answers more detail:os...

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

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390 views

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javascript - How to format date displayed in Datatable

I have a function that displays objects in my array using datatables. I'm a bit a problem with changing ... Thanks for your anticipated help. 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 - Can a JSON object returned by PHP contain a date object

Is there a way to create a JSON object in PHP that contains a javascript date object? Does json_encode ... DateTime to Javascript's date? See Question&Answers more detail:os...

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

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603 views

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javascript - What does the 2nd number after the colon in a node.js stack trace line mean?

In a node.js stack trace there are always two numbers, the line number then a : and another number. In the ... emit net.js:397:14 ? onread See Question&Answers more detail:os...

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

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399 views

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javascript - How do I set window.location to a specific path (without a host)?

I am using the window location method to redirect a webpage to another after a set amount of time. The ... location.pathname = "mobility.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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436 views

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javascript - Open.window in iframe

I am making a simple webpage for fun and I am a noob at JavaScript and I want to make windows open up when ... me if I made any mistakes 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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717 views

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javascript - How to make integer scale in Chartjs

I'm trying to make a horizontal bar chart with an integer scale. As suggested in this question, I've tried to set ... shows what I tried to 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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700 views

1 answer

javascript - Why node.js requires an upgrade while trying to run an application on the localhost?

When I try to run my node.js application on a localhost server, it does not run and demands a required upgrade. ... =event.data; } </script> See Question&Answers more detail:os...

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

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617 views

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javascript - AngularJS global Date timezone offset

I'm looking to show dates relative to the users' timezones. My hope is that Angular has way to globally config the ... ()); return stamp; }; See Question&Answers more detail:os...

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

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664 views

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javascript - Change element display none back to default style value JS

I have a function in JS that hides the element parsed: function hide(id){ document.getElementById(id).style. ... block" Any ideas? 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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565 views

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javascript - onChange function is not defined

This has got to be something simple. I searched the internet and only found syntax errors as the cause of this problem ... . Did I mispell 'hi'? See Question&Answers more detail:os...

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

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435 views

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javascript - underscore.js - Determine if all values in an array of arrays match

I have an array of arrays, which looks something like this: [["Some string", "Some other string"],["Some ... the check. Anyone have an idea? See Question&Answers more detail:os...

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

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422 views

1 answer

javascript - Node.js dns.resolve() vs dns.lookup()

I need to lookup a given host to its corresponding IP in Node.js. There seems to be two native methods of ... for lots of requests per second? See Question&Answers more detail:os...

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

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500 views

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javascript - Shadow DOM styling from the outside

I am searching a way to styling shadow DOM from the outside. For example, I would like to set the color of ... have as a replacement of them? See Question&Answers more detail:os...

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

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489 views

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javascript - What number does 8e3 evaluate to?

I encountered this code today: b = setTimeout(function () { // do some javascript stuff here }, 8e3) ... code appears to be fully functional. See Question&Answers more detail:os...

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

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534 views

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javascript - How to rerender when refs change

Code: import DrawControl from "react-mapbox-gl-draw"; export default function MapboxGLMap() { let drawControl = null ... changes and load 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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446 views

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javascript - how to check the actual DOM node using react enzyme

Is there a way to get the actual DOM node so I can the query it with the Dom api as opposed to being ... things about the dom node itself. See Question&Answers more detail:os...

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

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534 views

1 answer

javascript - Make title attribute appear instantly on hover

is there a possibility to make a title attribute of an anchor tag appear instantly on mouseover not just after ... jQuery and CSS is good. See Question&Answers more detail:os...

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

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507 views

1 answer

javascript - how to iterate a result of jquery selector

I want to iterate a result of query selector. Html code <nav id="navigation"> <a href="#" tabindex="1" ... href attribute I don't know why. See Question&Answers more detail:os...

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

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531 views

1 answer

javascript - Why does jQuery or a DOM method such as getElementById not find the element?

What are the possible reasons for document.getElementById, $("#id") or any other DOM method / jQuery selector not ... property 'style' of null See Question&Answers more detail:os...

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

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