Recent questions tagged Javascript

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I am using a JS object to create graphs with Google visualization. I am trying to design the data source. At ... and any correction or advices. 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 - Resetting the opacity of a child element - Maple Browser (Samsung TV App)

I have an issue with creating a transparent element which has a child element. Using this code the child element gets the ... /p> </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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javascript - How to cancel a subscription in Angular2

How does one cancel a subscription in Angular2? RxJS seems to have a dispose method, but I can't ... mySubscription to cancel the subscription? 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 - Why is Math.pow(0, 0) === 1?

We all know that 00 is indeterminate. But, javascript says that: Math.pow(0, 0) === 1 // true and C++ ... maybe a NaN would be better than 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 - Avoid Angular2 to systematically submit form on button click

Ok so maybe this is unclear. Get this form: <form (ngSubmit)="submit()" #crisisForm="ngForm"> <input type="text" ... ? And how to avoid that ? See Question&Answers more detail:os...

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

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366 views

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javascript - How to spyOn a value property (rather than a method) with Jasmine

Jasmine's spyOn is good to change a method's behavior, but is there any way to change a value property (rather ... expect(myObj.valueA).toBe(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 - Cross-origin resource sharing (CORS) concept

I have a question on the concept cross domain JavaScript. There is server(ex amazon.com) where in only selected ... my domain or the xyz. See Question&Answers more detail:os...

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

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320 views

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javascript - Client/JS Framework for "Unsaved Data" Protection?

We have a typical web application that is essentially a data entry application with lots of screens some of which have ... ) that will help out? 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 - Classical Vs prototypal inheritance

After reading about both, I just have curiosity, how programming community uses this? In what situation which? 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 - How can I retain the scroll position of a scrollable area when pressing back button?

I have a long list of links inside a big scrollable div. Each time when a user click on a link then click ... back button? Thank you very much! See Question&Answers more detail:os...

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

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471 views

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javascript - How can I modify the XMLHttpRequest responsetext received by another function?

I am trying to modify the responseText received by a function that I cannot modify. This function creates a ... modifications in the response. See Question&Answers more detail:os...

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

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399 views

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javascript - Auto-expanding textarea

I'm trying to do a simple auto-expanding textarea. This is my code: textarea.onkeyup = function () { textarea. ... for your answer to play with. See Question&Answers more detail:os...

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

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376 views

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javascript - a script on this page is causing ie to run slowly

The problem is in the title - IE is misbehaving and is saying that there is a script running slowly - FF and ... tool and it seems pretty cool. See Question&Answers more detail:os...

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

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389 views

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javascript - jQuery Screen Resolution Height Adjustment

In order to better balance out a page I am working on I would like to find a way to increase the ... these dimensions with jQuery or Javascript? See Question&Answers more detail:os...

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

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304 views

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javascript - Regular expression to remove a file's extension

I am in need of a regular expression that can remove the extension of a filename, returning only the name of ... I am doing this in JavaScript See Question&Answers more detail:os...

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

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434 views

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javascript - What's the difference between cancelBubble and stopPropagation?

Can anyone please tell me difference in usage of cancelBubble and stopPropagation methods used in Javascript. See Question&Answers more detail:os...

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

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353 views

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javascript - How to save the contents of a div as a image?

Basically, I am doing what the heading states, attempting to save the contents of a div as an image. I ... (or other Javascript libraries). See Question&Answers more detail:os...

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

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433 views

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javascript - Can I use jQuery to check whether at least one checkbox is checked?

I have the following HTML form which can have many checkboxes. When the submit button is clicked, I want the user ... value="Submit"> </form> See Question&Answers more detail:os...

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

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497 views

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javascript - Removing undefined values from Array

In certain situations, it may happen that we have undefined or generally falsy values in Array structures. For ... undefined (falsy values) ? See Question&Answers more detail:os...

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

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500 views

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javascript - How do I retrieve if the popstate event comes from back or forward actions with the HTML5 pushstate?

I'm developing a webpage where depending on the next or back actions I do the correspondent animation, the ... to implement something myself? See Question&Answers more detail:os...

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

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378 views

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javascript - Confirmation dialog on ng-click - AngularJS

I am trying to setup a confirmation dialog on an ng-click using a custom angularjs directive: app. ... co/edit/EHmRpfwsgSfEFVMgRLgj?p=preview See Question&Answers more detail:os...

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

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304 views

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javascript - How to get the date from jQuery UI datepicker

I want to get the date from datepicker whenever user choose the date in jQuery UI datepicker and click the button ... the date form jQuery UI? See Question&Answers more detail:os...

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

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475 views

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javascript - html <input type="text" /> onchange event not working

I am trying to do some experiment. What I want to happen is that everytime the user types in something in the ... ).value; alert(textInput); } See Question&Answers more detail:os...

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

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381 views

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javascript - How do I get first element rather than using [0] in jQuery?

I'm new to jQuery, apologies if this is a silly question. When I use it find an element using the id, ... = $("#grid_GridHeader")[0]; See Question&Answers more detail:os...

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

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359 views

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javascript - Angular 2 pipe that transforms JSON object to pretty-printed JSON

Trying to write an Angular 2 pipe that will take a JSON object string and return it pretty-printed/formatted to ... | prettyprint }} </td> See Question&Answers more detail:os...

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

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277 views

1 answer

javascript - Testing if jQueryUI has loaded

I'm trying to debug a website, and I think that jQueryUI may not have loaded properly. How can I test if jQueryUI has loaded? See Question&Answers more detail:os...

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

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565 views

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javascript - Why jQuery do this: jQuery.fn.init.prototype = jQuery.fn?

Little extended question is why jQuery do jQuery.fn = jQuery.prototype = { init: function() {...}, f1: ... or there are some deep ideas? See Question&Answers more detail:os...

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

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655 views

1 answer

javascript - Set caret position right after the inserted element in a contentEditable div

I'm inserting an element into a contentEditable div but the browser sets the position of the cursor before the ... -adjust the cursor position? See Question&Answers more detail:os...

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

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