Recent questions tagged javascript

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javascript - Does forEach() bind by reference?

var arr = ['Foo']; arr.forEach(function(item){ console.log(item); item = 'Lorem'; console.dir(arr[0 ... topic is covered quite confusing on MDN 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 - select2 change background color

I am trying to use select2 on a webpage I am creating. However the combobox background seems to be transparent but ... to work. Any Ideas ? 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 - Facebook sdk.js returns 404 error

My web-app has the Facebook JS SDK implemented. Yesterday, everything was working fine and without any modification ... in Dublin, Ireland. 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 - Event handler for a html5 color input element

Using the new input="color" element within Chrome triggers a new popup dialog: I would like to know if there ... ://jsfiddle.net/Riesling/PEGS4/ 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 - Listen for jQuery Event With Vanilla JS

So I am trying to determine whether its possible to listen for events added with jQuery using vanilla JS. I found this ... the message!"); }); See Question&Answers more detail:os...

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

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502 views

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javascript - Typescript function taking one or array of objects

We are using simple function declaration quite a lot where function takes either single object or array of objects of ... way is quite fine. 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 - Threejs Texture

When I execute my render of some geometry I can see in my console this warning: THREE.WebGLRenderer: Texture ... my canvas is completely black. 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 write FileReader test in Jasmine?

I'm trying to make this test work, but I couldn't get my head around how to write a test with FileReader. ... it never gets to reader.onload. 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 - Script to enable/disable input elements?

I'm wondering if it's possible for a script to enable/disable all input elements on the page with some sort of ... to edit it for the toggle. 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 defining angular.module() multiple times

What is the behaviour of calling angular.module('myModule') multiple times? For example, I wish to define my routes ... or last-in-wins? eg: 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 - line break for d3 circle title tooltipText

I'm using d3's svg, when the tooltipText for a circle title is "line1 line2", the line is not broken into 2 ... ) .attr("title", tooltipText); } 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 does this query return all query results and not just those matched with users name?

UPDATE - The bounty is to help me resolve this issue and allow the code to filter back query results based on ... id="FriendsStuffName"></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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682 views

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javascript - localStorage: Storing Objects vs Simple Data Types in different ways?

I've seen the approach of using JSON.stringify and JSON.parse to store and retrieve values/objects from HTML5 localStorage. ... a bit of a mix. See Question&Answers more detail:os...

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

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546 views

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javascript - Match everything but not quoted strings

I want to match everything but no quoted strings. I can match all quoted strings with this: /(("([ ... impossible! Nothing is impossible. 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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510 views

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javascript - What does anObject.prototype.constructor do?

Suppose we have this constructor: var Foo = function(){ this.x = "y"; } Foo and Foo.prototype.constructor ... m just curious about the language. See Question&Answers more detail:os...

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

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427 views

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javascript - Looping Results with an External API Call and findOneAndUpdate

I am trying to write a program that gets the documents from a mongo database with mongoose and process them using ... id. Any solution? 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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603 views

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javascript - Canvas images and Click event

I have currently two circles in a <canvas> tag with HTML5 & JavaScript. Now I'm trying to add an image ... when replacing it with another 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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467 views

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javascript - Unable to pass props to component through react-router

I am unable to pass props using react-router. My code till now: import React from 'react'; import ReactDOM ... router/web/api/Route/route-props See Question&Answers more detail:os...

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

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848 views

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javascript - 60fps: How to use requestAnimationFrame the right way?

On my website, a related content box should be animated into the viewport when it gets visible. I'm trying ... overhang); return isVisible; } See Question&Answers more detail:os...

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

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572 views

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javascript - Why is ContentEditable removing “ID” from div

I am having problems with getting a HTML editor working. We are using contentEditable to implement it, ... of using contentEditable in IE See Question&Answers more detail:os...

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

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579 views

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javascript - Finding all permutations of array elements as concatenated strings

I am trying to write a JavaScript function that returns all combinations of the elements of an array of unknown length. ... .log(result2[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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554 views

1 answer

javascript - Render a nested array of objects in react

I map through multiple objects. [{name:"y", country:"US", cities:[obj,obj,ob]},{name:"y", country:"US", ... :1}, {visitors:124, rating: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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578 views

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javascript - Node.js monitor file for changes and parse them

I need to monitor a file for changes. Due to a large amount of new entries to this file I would need to ' ... line which is now inserted? }); See Question&Answers more detail:os...

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

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1.0k views

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javascript - Detect url in textarea with JS or Jquery

How to detect (in a textarea or others inputs) if the user has finished to enter a url as Facebook does in ... each space. Thank you 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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442 views

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javascript - How to read this JSON with jquery

How do I read this JSON with Jquery? Lets say I want get all the data with the "quote" object. Many thanks! cbfunc( ... : null, "MoreInfo": "cnprmiIed", "OrderBookRealtime": "N/A",...

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

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806 views

1 answer

javascript - How to mock axios.create([config]) function to return its instance methods instead of overriding them with mock?

I'm trying to mock axios.create() because I'm using its instance across the app and obviously need ... /github.com/axios/axios#instance-methods See Question&Answers more detail:os...

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

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503 views

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javascript - TS / JS: Overwrite a function and call original function within

I'd like to know if there's a way to modify a function in TypeScript and access the original function within. This ... if there's a better way. See Question&Answers more detail:os...

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

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447 views

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javascript - detachEvent not working with named inline functions

I ran into a problem in IE8 today (Note that I only need to support IE) that I can't seem to explain: ... Shouldn't the first snippet work fine? See Question&Answers more detail:os...

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

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