Recent questions tagged Javascript

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javascript - How to load an Array (of numbers) into a google app script Byte[]

I have an Array (of numbers) in Google Apps Script, and I want to convert it to base64. I could of course ... x = Utilities.newBlob(bytes2) } 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 - Trouble uploading binary files using FileReader api

I'm using FileReader.readAsBinaryString to upload a file using a multipart/form-data POST request to a server ... missing something else? 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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javascript - d3.max() not returning the max value in an array?

I've been teaching myself d3 overnight and can't seem to figure out this one issue I am having. I am ... code more readable for Stack Overflow. 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 - How to use arrow keys to move object smoothly in canvas

I'm working on making a simple space game where a ship moves left and right to dodge asteroids. I learned to move ... </script> </body> </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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javascript - Typescript error：Type 'number' is not assignable to type 'never'

interface Opts { onFrame: () => void; onAudioSample: null; emulateSound: boolean; sampleRate: number; } class NES { ... why it is a never type. 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 - Leading 0 missing from data and time

I have a function which works well, for converting dates from a webservice returned in json format. The ... the Expected output examples? 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 - Access iframe content from parent jquery

I want to access iframe content on parent jquery. I have add following code on parent page. $(document).ready( ... ... 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 using a ternary operator or just short-circuit evaluation?

Recently came across short-circuit evaluation and was a little confused by it as i only got into programming the ... me that would be great. 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 - Unable to solve error " Uncaught SyntaxError: Unexpected token o "

I am currently practicing using Javascript/Dojo. However, I have an error that I am unable to solve: Uncaught ... how I would solve 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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javascript - jQuery DataTables - Ordering dates by hidden column

I have been working for a couple of days with DataTables and I have this task: I need to disable the initial ... . 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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javascript - How to convert a jQuery filter for use with waitForKeyElements?

This code removes tweets with less than 3 retweets, but now I have the refresh (AJAX) issue. How can I add the ... ) < 3; }).remove(); 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 - Storing observer in a global variable and use it later

How can I create an observable and generate the next value later in the code? I would like to be ... ... GlobalObserver.onNext(someOtherData); 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 - Get pixelcolor of CSS Background Image

I need to get the color of any pixel my mousepointer is currently hovering. I found several solutions for canvas ... How can I achieve 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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javascript - How to do OAuth authentication via AJAX / jQuery?

I've worked a bit with Twitter web API, I know it works with OAuth, I've consumed the API using a python ... how to catch the response from API. 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 - Code works in Codepen, but not with my desktop files

I'm trying to run a simple few lines of code using an index.html file and a script.js file, nothing ... the javascript folder.) Thank you all 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 - Open child browser window from child window

Does anyone know how to open a browser window from a child window? On my main window I'm doing a window. ... first child. 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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javascript - How to create Undo-Redo in kineticjs?

Is there any simple way how to create undo redo function in Kineticjs ? I have found a Undo Manager for HTML 5 ... , please help me. 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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javascript - Detect if text-overflow:ellipsis is active on input field

I am wondering it there is a way to detect if text-overflow:ellipsis is active on an input field so i ... See this link for more information. 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 - How to use Jquery Query Builder in Angular

Looking for a way of using the jQuery Query Builder in my angular-cli project. First I've tried using the ... code to reflect current usage. 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 - NVD3 (D3 JS) how to remove y2 axis

I'm trying to use the following example which is a line and bar chart combined. NVD3 Line & Bar Chart ... the return chart; line. JSFiddle 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 - Angularjs vs SEO vs pushState

After reading this thread I decided to use pushstate api in my angularjs application which is fully API-based ( ... how to use this approach. 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 - jquery - show textbox when checkbox checked

I have this form <form action=""> <div id="opwp_woo_tickets"> <input type="checkbox" class=" ... /codepen.io/mistergiri/pen/spBhD 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 - Why is the jquery empty function so complicated?

I looked at the jQuery source code for the .empty() function: empty: function() { for ( var i = 0, ... set of matched elements from the DOM. 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 - always trigger "change"-event for <select>, even if the select2-option clicked is already selected

I have a native <select>-element based on which I'm initializing a select2-dropdown-menu. I bound a change- ... if something isn't clear enough. 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 - How do I determine an HTML input element type upon an event using jQuery?

Given the following sample code: $(document).ready(function(){ $(":input").blur(function(){ alert("The ... for the purposes of this question 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 - Is React's setState asynchronous or something?

Hmm. I'm using setState and for some reason the code following it doesn't have access to the new state! What gives?! 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 - ERROR in node_modules/@angular/material/table/cell.d.ts -Typescript version problem angular

Im using angular in my project so I faced this issue I tried to downgrade my typscript to 3.9.7 but still not ... me an idea to solve 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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javascript - how rotate an image around on oval shape image in css3 animation?

am a beginner in css3 animations.i have one task like,a pen image is rotate around on oval shape image.as much as i ... </div> </body> </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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