Recent questions tagged Javascript

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javascript - Random Point on a given Sphere

I want to select random points on a given sphere. This page explains it quite well: http://mathworld.wolfram.com/ ... to the power of -1". 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 - only allow English characters and numbers for text input

Live Demo: http://jsfiddle.net/thisizmonster/DveuB/ How can I change this so that the input only allows ... without using a regular expression? 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 - PO Box Regular Expression Validation

Here's my code, but I can't ever trigger the alert. $(document).ready( function (){ $("[id*='txtAddress1S']") ... shipping address.'); } }); }); 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 - Bootstrap Collapsed Menu Links Not Working on Mobile Devices

I am using a collapsible menu with submenu items in a navigation bar. The menu collapses properly on narrow displays, ... etc. Any ideas? TIA. 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 - Higher DPI graphics with HTML5 canvas

Is there a way to set a custom DPI/PPI when creating an image using the HTML5 canvas? I know how can I ... 't seem like the correct solution. See Question&Answers more detail:os...

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

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183 views

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javascript - How to minify JS in PHP easily...Or something else

I've done some looking around, but I'm still confused a bit. I tried Crockford's JSMin, but Win ... how about removing completely BLANK lines? 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 - Display tooltip in canvas graph

I am using html5 canvas element to draw a graph with dots denoting various points in here. I want to display ... user input as tool-tip? 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 - Is using async in setTimeout valid?

I had a asynchronous function in Javascript and I added setTimeout to it. The code looks like that: let ... setTimeout is asynchronous anyway? 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 - Private variables in inherited prototypes

I think I have misunderstood how Javascript prototypal inheritance works. Specifically, the prototypes internal variables ... arguments); }; 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 - Sending JSON object successfully to ASP.NET WebMethod, using jQuery

I've been working on this for 3 hours and have given up. I am simply trying to send data to an ... .Generic.List`1[System.Object]u0027 See Question&Answers more detail:os...

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

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215 views

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javascript - Blinking text cross browser

I want to make a blinking text. First I tried the <blink> HTML tag, but it is only supported in Mozilla ... , Google Chrome Safari, Opera.) See Question&Answers more detail:os...

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

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137 views

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javascript - Accessing nested JSON with AngularJS

I'm trying to make and mobile webapp with angular.js, hammer.js and topcoat. I'm having some trouble on ... those artists with a text field. See Question&Answers more detail:os...

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

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229 views

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javascript - How to use Phonegap SoftKeyboard Plugin for Android?

I am developing an Android application using Phonegap. I need to make the softkeyboard appear programatically. I am ... is not displaying.. See Question&Answers more detail:os...

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

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175 views

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javascript - Development on Angular2 with TS but without NPM

All guides suggests to install npm, but I'm searching for a way without it. There are Angular2 files available ... the huge collection of code. See Question&Answers more detail:os...

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

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151 views

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javascript - AngularJS: Linking to elements in a directive that uses ng-repeat

I have a simple directive where the template uses ng-repeat inside it. I need to run some code to instantiate a ... Any ideas what I'm missing? See Question&Answers more detail:os...

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

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286 views

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javascript - Benefit of Immediately-invoked function expression (IIFE) over a normal function

I'm pretty new to javascript and I read about the module pattern to provide some sort of namespace and have both ... ? Why should I use them? See Question&Answers more detail:os...

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

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215 views

1 answer

javascript - Determine if point is within bounding box

How would you determine if a given point is within the bounding box? My point is 48.847172 , 2.386597. ... "2.46138595581", "2.48138619423" See Question&Answers more detail:os...

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

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257 views

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javascript - Electron - How to add external files?

I have an Electron app. I try to make the app open an .exe file. I created a directory in the root ... be accessed when the app is packaged? See Question&Answers more detail:os...

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

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144 views

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javascript - Is it possible to get data from HTML forms into android while using webView?

I'm making a very simple form in HTML which is viewed in android using the webview which takes in your name ... variable will I get the value. See Question&Answers more detail:os...

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

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347 views

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javascript - How to find the least common multiple of a range of numbers?

Given an array of two numbers, let them define the start and end of a range of numbers. For example, [2,6] ... repeatRecurse(minn, max, max); } See Question&Answers more detail:os...

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

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283 views

1 answer

javascript - Unable to get value of margin property from result getComputedStyle

The result of a getComputedStyle contains a property named "margin", but the property is always an empty string ("") in ... === ""); // same See Question&Answers more detail:os...

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

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302 views

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javascript - jQuery get max width of child div's

I need to get the max width(just the one width) of the child div in the wrapper div element <div id="wrapper"> < ... images/6.jpg"></div> </div> See Question&Answers more detail:os...

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

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135 views

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javascript - Regex - check if input still has chances to become matching

We've got such regexp: var regexp = /^one (two)+ three/; So only string like "one two three" or " ... way to check why some string didnt match See Question&Answers more detail:os...

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

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223 views

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javascript - Load (Lazy Loading) a Div whenever the DIV gets visible for the first time

I want to enable a lazy loading for the contents of my website. Just like Jquery Image loading http://www. ... how. Any help is appreciated. See Question&Answers more detail:os...

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

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138 views

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javascript - When to Use vm. or this. in Vue.js

I am a little confused on when to use the "this" word in vue.js. For example, in the code below everywhere I use ... vm.showAdd = false; } }, }) See Question&Answers more detail:os...

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

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864 views

1 answer

javascript - How to start and stop/pause setInterval?

I'm trying to pause and then play a setInterval loop. After I have stopped the loop, the "start" button in my ... "start()" value="start" /> See Question&Answers more detail:os...

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

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251 views

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javascript - What's the difference between a Deferred object and its own promise object?

Let's create a simple Deferred object: defer = $.Deferred( function ( defer ) { setTimeout( defer. ... there this redundancy in functionality? See Question&Answers more detail:os...

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

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429 views

1 answer

javascript - Rendering a Base64 PNG with Express

My Node.js server has something that looks like the following: app.get("/api/id/:w", function(req, res) { var ... can be used in an img tag)? See Question&Answers more detail:os...

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

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