Recent questions tagged Javascript

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javascript - Regular Expression: Any character that is NOT a letter or number

I'm trying to figure out the regular expression that will match any character that is not a letter or a number. ... a blank space. Any advice. See Question&Answers more detail:os...

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

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319 views

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javascript - Difference between toFixed() and toPrecision()?

I'm new to JavaScript and just discovered toFixed() and toPrecision() to round numbers. However, I can't figure ... () and number.toPrecision()? See Question&Answers more detail:os...

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

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156 views

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javascript - How to create tooltip over text selection without wrapping?

My end goal is to create a tooltip over a text selection. The user will then be able to interact with ... the selection can be multiple nodes) See Question&Answers more detail:os...

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

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199 views

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javascript - YouTube API Target (multiple) existing iframe(s)

I'm trying to understand how to target an existing iframe using the YouTube API (i.e. without constructing ... jsfiddle.net/SparrwHawk/KtbYR/2/ See Question&Answers more detail:os...

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

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194 views

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javascript - AngularJS | handle routing before they load

I wish to create a simple authentication check for my routes by external service. I define the access ... route before they process? See Question&Answers more detail:os...

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

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311 views

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javascript - Node.js Socket.io page refresh multiple connections

i have this simple node.js Servercode using socket.io (1.5): var io = require('socket.io').listen(8080 ... simple pressing F5? Best Regards Marc See Question&Answers more detail:os...

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

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156 views

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javascript - Append image file to form data - Cordova/Angular

I am using Anuglar, Ionic and Cordova in my current project, and I'm trying to POST FormData containing an ... so any help 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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129 views

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javascript - object vs. primitive

Recently had an interviewer ask to define the difference between objects and primitives. Seemed like an odd ... referring to was JavaScript. See Question&Answers more detail:os...

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

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805 views

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javascript - How to rotate a Three.js Vector3 around an axis?

How to rotate a Three.js Vector3 by a certain angle around an 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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157 views

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javascript - Google.com and clients1.google.com/generate_204

I was looking into google.com's Net activity in firebug just because I was curious and noticed a request was returning ... two_o_fours[i]; } }; See Question&Answers more detail:os...

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

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384 views

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javascript - jQuery event.preventDefault() not working in Firefox (JSFiddle included)

This is a kind of similar duplicate to some others here, but I think I'm using event.preventDefault() correctly ... errors come up in either... See Question&Answers more detail:os...

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

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225 views

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javascript - How to set activeClassName for wrapper element of Link or IndexLink in react-router?

I am new to the ReactJS world, and would like to know how can I pass active class name to the <li> element ... C</Link></li> 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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154 views

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javascript - Is there a way to short circuit async/await flow?

All four functions called below in update return promises. async function update() { var urls = await ... current operation to finish. See Question&Answers more detail:os...

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

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134 views

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javascript - jQuery slide is jumpy

I tried to slide in and out a DIV with the toggle function of jQuery but the result is always jumpy at the start and ... 1.4, no more chance :-( See Question&Answers more detail:os...

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

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506 views

1 answer

javascript - Using "await" inside non-async function

I have an async function that runs by a setInterval somewhere in my code. This function updates some cache in ... be confusing things here). See Question&Answers more detail:os...

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

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141 views

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javascript - Storing an object in state of a React component?

Is it possible to store an object in the state of a React component? If yes, then how can we change the value ... store an object in the state. See Question&Answers more detail:os...

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

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99 views

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javascript - Websocket onerror - how to read error description?

I've been developing browser-based multi player game for a while now and I've been testing different ports ... . Any help is 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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125 views

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javascript - Angular cookies

I've been looking all around for Angular cookies but I haven't been able to find how to implement cookies ... (like $cookie in AngularJS)? See Question&Answers more detail:os...

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

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396 views

1 answer

javascript - React.js, wait for setState to finish before triggering a function?

Here's my situation: on this.handleFormSubmit() I am executing this.setState() inside this.handleFormSubmit(), I am calling ... /div> ); } }); See Question&Answers more detail:os...

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

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319 views

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javascript - How to add Document with Custom ID to firestore

Is there any chance to add a document to firestore collection with custom generated id, not the id generated by firestore engine? See Question&Answers more detail:os...

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

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499 views

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javascript - Run Jquery function on window events: load, resize, and scroll?

How do I run a jquery function on window events: load, resize, and scroll? Here is my code I'm trying to detect ... { // ajax code goes here } See Question&Answers more detail:os...

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

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429 views

1 answer

javascript - Best way to preload images with Angular.js

Angular's ng-src keeps previous model until it preloads image internally. I am using different image for the ... background-image. 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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121 views

1 answer

javascript - How to zoom div content using jquery?

I have a parent <div>. Inside that I place some text and images. Now I need to zoom to a particular portion ... parent <div>. Is it possible? 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

1 answer

javascript - Change DOM Content With Chrome Extension

I am building a Chrome extension. I am trying to get my app to communicate with each page in the extension and ... / response(domInfo); } }); See Question&Answers more detail:os...

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

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110 views

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javascript - Using Object.assign and Object.create for inheritance

I typically implement inheritance along the following lines. function Animal () { this.x = 0; this.y = 0; ... = Object.create(Animal.prototype); See Question&Answers more detail:os...

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

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162 views

1 answer

javascript - jQuery Dialog Box

Im trying to do a dialog box with jquery. In this dialog box Im going to have terms and conditions. The ... . Can you please help! 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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766 views

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javascript - What is the easiest way to detect if at least one field has been changed on an HTML form?

I have an HTML form with over 20 fields. I also have a couple of links on the page which will lead the ... at least one of the field values? See Question&Answers more detail:os...

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

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107 views

1 answer

javascript - How can I wait for a condition?

I'm new on protractor, and I'm trying to implement an e2e test. I don't know if this is the right ... before protractor tries to click on it? See Question&Answers more detail:os...

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

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