Recent questions tagged Javascript

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javascript - object has no hasOwnProperty method (i.e. it's undefined) - IE8

This seems quite bizarre. Here's my experiment in the IE8 console: typeof obj1 // "object" obj1.hasOwnProperty // ... to what could cause this? See Question&Answers more detail:os...

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

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272 views

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javascript - Returning JSON array from a Django view to a template

I'm using Django to create a web-based app for a project, and I'm running into issues returning an array from ... out the right way to do this? See Question&Answers more detail:os...

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

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341 views

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javascript - Does .sort function change original array?

I have that code: arr = arr.sort(function (a, b) { return a.time>b.time }) Do I need to ... and filter functions change the original array? See Question&Answers more detail:os...

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

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357 views

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javascript - Set custom header for the request made from <img/> tag

Let's say I have a code like this: <img src='images/whatever.jpj' width='' height=''/> How to ... this request? Will appreciate any help. See Question&Answers more detail:os...

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

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354 views

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javascript - Chrome re-ordering object keys if numerics, is that normal/expected

I noticed that certain code that evaluates some shoe sizes for an e-commerce site and outputs them on screen ... by updated main example) See Question&Answers more detail:os...

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

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1.3k views

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javascript - How can I handle browser tab close event in Angular? Only close, not refresh

My goal is remove user cookies when browser tab closed. Is it possible? Can I handle browser tab close event without ... I do this in Angular? See Question&Answers more detail:os...

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

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418 views

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javascript - How can I add Font Awesome to my Aurelia project using npm?

I have been following the Contact Manager tutorial and would like to add Font Awesome to the project. Here's what ... looking for the .js file? See Question&Answers more detail:os...

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

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403 views

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javascript - Iframe.readyState does not work in chrome

I create an Iframe on the fly and set as the url a page that downloads a binary file (xls, doc ... .setTimeout(showProgressAnimation, 1000); } See Question&Answers more detail:os...

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

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417 views

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javascript - How to disable elements selection and resizing in contenteditable div?

E.g. I have the following layout: <div contenteditable="true"> <span class="text-block" contenteditable="false"> ... to disable this: and this: See Question&Answers more detail:os...

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

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556 views

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javascript - Accessing elements of JSON object without knowing the key names

Here's my json: {"d":{"key1":"value1", "key2":"value2"}} Is there any way of accessing the keys ... .Add(key,value) Return Results End Function See Question&Answers more detail:os...

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

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324 views

1 answer

javascript - Flatten array with objects into 1 object

Given input: [{ a: 1 }, { b: 2 }, { c: 3 }] How to return: { a: 1, b: 2, c: 3 } For ... a problem with lodash but here we have array of objects. See Question&Answers more detail:os...

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

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396 views

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javascript - How to do promise.all for array of array of promises?

I am trying to run array of functions parallel and when everybody finishes I want work on that result. I am using ... is there any better way ? See Question&Answers more detail:os...

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

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343 views

1 answer

javascript - Does HTML Hidden control have any events? Like onchange or something?

Can I attach any event handlers to HTML hidden input fields? Basically I want to run a function when a hidden input field value changes. See Question&Answers more detail:os...

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

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521 views

1 answer

javascript - What is the size limit of a Base64 DataURL image?

I would like to know what is the maximum length of a Base64 DataURL Image to be load in a browser? Thanks! See Question&Answers more detail:os...

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

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314 views

1 answer

javascript - Client-side detection of HTTP request method

Is it possible to detect the HTTP request method (e.g. GET or POST) of a page from JavaScript? If so, how? See Question&Answers more detail:os...

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

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385 views

1 answer

javascript - array join() method without a separator

var arr= ['g','o','o','d']; var arr2 = arr.join(); Arr2 will be "g,o,o,d". I would like to ... was curious if there was a way with join. Thanks See Question&Answers more detail:os...

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

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452 views

1 answer

javascript - event.toElement in IE8 and Firefox?

I have noticed that in Chrome and IE9, for onmouseout events there is an event.toElement property (so you ... Any advice would be 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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694 views

1 answer

javascript - GraphQL Error field type must be Input Type but got:

Here is the mutation: const createNotebook = mutationWithClientMutationId ({ name: 'CreateNotebook', inputFields: { token: ... do I correct it? See Question&Answers more detail:os...

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

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375 views

1 answer

javascript - Vertical centering variable height image while maintaining max-width/height

I want to center an image of unknown width/height on a page, while making sure that it shrinks if it is bigger ... (or any other JS library). See Question&Answers more detail:os...

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

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296 views

1 answer

javascript - DataTables row.add to specific index

I'm replacing row items like this: var $targetRow = $(entity.row), dataTable = $targetRow.closest('table.dataTable ... it into a specific index? See Question&Answers more detail:os...

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

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274 views

1 answer

javascript - callback function meaning

What is the meaning of callback function 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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343 views

1 answer

javascript - Changing getJSON to JSONP

I have this code: <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script ... ... Is this totally different? See Question&Answers more detail:os...

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

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502 views

1 answer

javascript - How to run Puppeteer code in any web browser?

I'm trying to do some web scraping with Puppeteer and I need to retrieve the value into a Website I'm building ... : What am I doing wrong? See Question&Answers more detail:os...

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

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300 views

1 answer

javascript - What is JavaScriptExecutor in Selenium?

What is JavaScript Executor in Selenium WebDriver? What is the use of it and how can we use this in ... ? An example would be 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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289 views

1 answer

javascript sorting array based on another array

I have a global array var g = [ "jack", "queen", "king", "10", "ace","7", "8", "9"]; and ... help me sorting out this issue. Thanks in advance. See Question&Answers more detail:os...

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

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467 views

1 answer

javascript - CSS fade left to right

Is there a way to fade elements (at least just text) in and out going left to right or vice-versa using only ... too, just as a second priority. See Question&Answers more detail:os...

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

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588 views

1 answer

javascript - Override a method from a Primefaces specific widget

I want to overwrite a function of Primefaces datatable component. According to this question: How do I find and/or ... or am I completely wrong? See Question&Answers more detail:os...

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

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375 views

1 answer

javascript - HTML5 drag and drop folder detection in firefox. Is it even possible?

I have a drop zone where I want to detect whether the dragged item is a folder or file. In chrome ... -comments would be much 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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