Recent questions tagged Javascript

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javascript - d3.js & nvd3.js -- How to set y-axis range

I'm trying to set the y-axis range of the chart from 1-100. Consulted the API documentation and found a ... where I can specify the range? 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 - Facebook Graph API won't return email address

Edit: Not Duplicate, because: I have the permission Debugged the token Code works with test user Please don't ... Even when i grant permission? 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 - UnhandledPromiseRejectionWarning: This error originated either by throwing inside of an async function without a catch block

I am getting following error in my Node-Express App UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error ... I fix 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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javascript - AngularJs: How to set radio button checked based on model

I have a model returning in the storeLocations object with a isDefault value. if isDefault returns true, I wan' ... name="isDefault_group"></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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javascript - Using state in react with TypeScript

I am new to TypeScript. I've got a problem with displaying this.state.something inside the render method or assigning ... here to make it work? 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

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javascript - What is the JS equivalent to the PHP function number_format?

PHP Function: function formatNumberForDisplay($number, $decimal=0, $decimalSeperator='.', $numberSeperator=',') { ... in jQuery/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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javascript - chrome.runtime.sendMessage throws exception from content script after reloading Chrome Extension

I send messages from the injected content scripts back to my background script in my Chrome Extension as such: ... Any idea why this happens? 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 - Correct prototype chain for Function

What is the correct output (meaning correct by the ECMA standard) of the following program? function nl(x) { ... [object Object] true undefined 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 - Django jQuery post request

$.ajax({ url:'/', type: "POST", data: {name: 'name', age: 'age'}, success:function(response){}, complete ... be working. 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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javascript - Embed Google Maps on page without overriding iPhone scroll behavior

I'm working on optimizing a site for mobile. We have a Location page that includes info about a ... document.addEventListener to no avail. 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 - [[Prototype]] vs prototype: ..what is the difference? (MyCons.__proto__ === MyCons.prototype) equals FALSE

It seems like there is a difference here... Let's say we have function MyConstructor() {} MyConstructor's [ ... explain it to me the difference? 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 - Node.js encrypts large file using AES

I try to use following code to encrypt a file of 1 GB. But Node.js abort with "FATAL ERROR: JS Allocation failed ... + cipher.final('hex'); }); See Question&Answers more detail:os...

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

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163 views

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javascript - How to pan the canvas?

I have these event listeners in my code canvas.addEventListener('mousemove', onMouseMove, false); canvas.addEventListener ... just doesnt pan. See Question&Answers more detail:os...

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

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141 views

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javascript - filter array of objects by another array of objects

I want to filter array of objects by another array of objects. I have 2 array of objects like this: const array = [ ... value: item.id, }); } } 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 - simplest way to remove all the styles in a page

I need to remove all the style definitions in a page using javascript, to obtain the same result as doing View ... . Which is the simplest 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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227 views

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javascript - HTML5 Client Side Data Encryption - What are my options?

I am working on a EDIT: mobile web app which displays some sensitive information and requires a login which ... stored client-side? 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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281 views

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javascript - D3.js Zooming and panning a collapsible tree diagram

I'm using D3.js to plot a collapsible tree diagram like in the example. It's working mostly well, but the diagram might ... event.y + ")"); } } 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 - Getting the Screen Pixel coordinates of a Rect element

I am trying to get the screen pixel coordinates of a rectangle in SVG via java script. When the rectangle has ... pixel size of svg element? See Question&Answers more detail:os...

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

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223 views

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javascript - How to make route direction between multiple markers

How to make route direction between Manly Beach -> Bondi Beach -> Coogee Beach -> Maroubra Beach -> Cronulla ... //codepen.io/anon/pen/VaQwqK See Question&Answers more detail:os...

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

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337 views

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javascript - Google Maps Drawing Manager limit to 1 polygon

I am creating a map with the google maps v3 API. Using the drawing manager to draw shapes. Is there a ... if the current polygon was deleted? See Question&Answers more detail:os...

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

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270 views

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javascript - jQuery event bubbling

I want to understand how exactly to interpret bubbling. Does it mean going up the HTML code hierarchy or something ... up) What does this mean? See Question&Answers more detail:os...

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

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271 views

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javascript - Destructuring array of objects in es6

In es6, how can i simplify the following lines using destructuring?: const array0 = someArray[0].data; const ... array2 = someArray[2].data; 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 - AngularJS - dynamic loading of external JS based on routes

I am trying to make a simple single page mobile app with multiple views and a nextack button to control each view. ... ", "second.html", etc. See Question&Answers more detail:os...

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

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446 views

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javascript - Uncaught TypeError: Cannot set property 'value' of null

I'm trying to pass the entered text to the controller using an ajax request. But i'm getting athe error " ... Please help me to fix 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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139 views

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javascript - Using Chart.js on Angular 4

I'm trying to use Chart.js with Angular 4, I saw an example on the chart.js documents but it's using a ... (zone.js:602) at <anonymous> See Question&Answers more detail:os...

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

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306 views

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javascript - jqueryUI datepicker fires input's blur before passing date, avoid/workaround?

I have some validation on a text input bound to its blur event. I have a datepicker on this field (the version ... or how to work around 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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247 views

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javascript - How to bind keyboard events to div elements?

Is there a way to listen to keyboard events on a DIV element? My code: ?<div id="div" style="height:50px" ... can I handle it for the 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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674 views

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javascript - Trying to hash a password using bcrypt inside an async function

Following on from this question. I feel like I'm almost there, but my incomplete understanding of async is ... }); return hashedPassword } See Question&Answers more detail:os...

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

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