Recent questions tagged javascript

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javascript - Do I need to import React for stateless functional components?

All around me (e.g. blog posts, code) I see code for React stateless functional components in which React is imported ... that I'm not aware of? 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 printable keys

I need to detect whether the key which has just been pressed is a printable key, like a character, possibly ... hope not to forget some? 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 properly insert multiple rows into PG with node-postgres?

A single row can be inserted like this: client.query("insert into tableName (name, email) values ($1, ... add special characters escape somehow. 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 - internet explorer 10 not showing svg path (d3.js graph)

If I open this graph for example: http://bl.ocks.org/mbostock/1153292 in IE10, i just can't see the links ... find any way to make it visible. 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 get the server timestamp in Cloud Functions for Firebase with Firestore?

How can we get a server timestamp, without using the realtime database but using instead Firestore ? import * as ... the actual time }) } See Question&Answers more detail:os...

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

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276 views

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javascript - Chrome 61: Unexpected token import

Running Chrome 61 which is supposed to support module loading with import. Indeed Paul's demo works for me. ... Chrome not understand "import" 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 - Detecting Google Chrome Translation

I've added the Google Translation Bar to our website but due to how the layout works if the translation on ... in translation is being used? 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 change the number of rows in the textarea using jQuery

I have a textarea with 5 lines. I want to show only one line and on focus it should show remaining 4 lines. 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 - setTimeout delay doesn't wait for the timeout

I trying to wrap my head around setTimeout, but I can't get it to work properly. I have set up an example here: http:// ... () { foo(); }); }); 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 - Reactjs: Key undefined when accessed as a prop

Tools: Reactjs 0.14.0 Vanilla Flux I need unique identifiers for 2 reasons: Child Reconciliation Keeping track ... elements that contain 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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javascript - How to use CORS to access an iframe

When a user prints, my server generate a PDF, and I do this to show the print dialog for the PDF. $('< ... Allow-Origin: * What am I missing? 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 ES6 "yield" a reserved word when called in this context?

I am using node 4.1.1. When I run this code "use strict"; function *generator() { let numbers = [1,2,3, ... when it's used in a arrow 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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javascript - How to display selected file names before uploading multiple files in Struts2?

I am using Struts2 to upload multiple files: <s:file name="files" multiple="multiple" /> When I select ... maybe in the control 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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226 views

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javascript - Changing the 1-24 hour to 1-12 hour for the "getHours()" Method

When I use the "getHour()" method in javascript, it displays the military time format. I need it to display ... clock").innerHTML = todisplay; } See Question&Answers more detail:os...

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

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389 views

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javascript - Erasing previously drawn lines on an HTML5 canvas

To play around with HTML5 canvas, I decided to make an app which draws an analogue clockface. Everything's fine, ... case. Anything I'm missing? See Question&Answers more detail:os...

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

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120 views

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javascript - get custom attribute based on an id

How can I find the seq number given the id in this example? <table> <tr class="row_header thin_border"> </tr><tr id=" ... =:" + ???) } </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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javascript - Strange padding/margin when using UIWebView

I am creating an app that is having a UIWebView which contains an advert. The size of the view is the ... white padding? 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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217 views

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javascript - Sending/Parsing multiple JSON objects

I have a Sinatra server that is returning multiple JSON objects from the database in a streaming manner. The ... the entire string is consumed. See Question&Answers more detail:os...

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

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204 views

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javascript - Risk of using contentEditable in IE

We have to add a basic HTML editor to our product. As we only support IE at present (most customers are ... the problems other people have had) 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: Select only a class containing a string?

I'm currently using this to get the class for a specific bit of HTML on the page: $(this).parent("div"). ... or a number of other class names). 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 - TypeScript - possible to disable type checking?

Is it possible to disable type checking when using TypeScript? I love TypeScript for classes, interface etc yet for the ... it is a pain. 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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215 views

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javascript - jquery ui dialog opens only once

I have a button that opens a dialog when clicked. The dialog displays a div that was hidden After I close the ... dialog can't be opened again. See Question&Answers more detail:os...

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

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150 views

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javascript - Refreshing Google Maps API V3 Layers

I've been having trouble getting Google Maps API v3 to update correctly. I've got a javascript timer running that ... 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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143 views

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javascript - How can I check if two Map objects are equal?

How can I check if two ES2015 Map objects have the same set of (key, value) pairs? We can assume that all ... ). Does anybody have better 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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javascript - How can I select an element which does not contain a certain child element?

<div class="test"> <div class="example"></div> </div> <div class="test"> </div> How can I apply ... a child element with the class example? See Question&Answers more detail:os...

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

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223 views

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javascript - How to "override" a defined (get-)property on a prototype?

I have some code which defines a getter (but no setter, if such is relevant) on a prototype. The value ... property for the specific instance. See Question&Answers more detail:os...

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

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127 views

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javascript - Listening to onChange on a jQuery datepicker?

I currently am creating a date picker like so HTML <script src="https://code.jquery.com/ui/1.11.4/jquery ... : https://jsfiddle.net/szkfm0y7/ See Question&Answers more detail:os...

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

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267 views

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javascript - jquery: using appendTo in second to last row of table

I have a piece of the DOM that I'd like to insert into my page. Currently I'm just blindly using: $(myblob ... row above the second to last one. See Question&Answers more detail:os...

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

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