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(window.innerHeight * 0.02)) { this.headerClass = 'header--frosted'; if(window.location.pathname == '/') { this.bannerVideo = false; this.headerClass = 'header--frosted'; this.showNotice = false; } } else { this.headerClass = 'nope'; if(window.location.pathname == '/') { this.bannerVideo = true; this.headerClass = 'header--overvideo'; this.showNotice = true; } else { this.bannerVideo = false; this
by Dan Roberts, Lead Instructor This is the story of how I found and fixed a performance problem in a React webapp. I’ve debugged many slow programs but never in the context of the web, so this was a great opportunity to experiment with the tools and grow my skill set. My problem turned out to be particularly tricky to analyze, but with the help of Chrome’s performance tools, some manual profiling
次のようなテストコードを書きます。(これはMochaを使っていますが大体どんなテストフレームワークでも同じことが出来ます。) 次のスナップショットでは、transformというJSONを入力に受け取り、JSONを出力する関数をテストしています。 snapshot-test.js: const fs = require("fs"); const path = require("path"); const assert = require("assert"); const fixturesDir = path.join(__dirname, "snapshots"); // transform function const transform = require("../transform"); describe("Snapshot testing", () => { fs.readdirSy
MDN browser compatibility data: Taking the guesswork out of web compatibility Building the web is hard The most powerful aspect of the web is also what makes it so challenging to build for: its universality. When you create a website, you’re writing code that needs to be understood by a plethora of browsers on different devices and operating systems. It’s difficult. To make the web evolve in a san
JavaScript is essential to any advanced web app, so a strong debugger is a key part of the toolset. In this article, Dustin Driver and Jason Laster find out how the new Firefox JavaScript debugger can help you write fast, bug-free code. They will crack open a very simple to-do app with Debugger divided into three panes: the source list pane, the source pane, and the tool pane.. Here’s how it works
Buyer Protection Program When you buy a domain name at Dan.com, you’re automatically covered by our unique Buyer Protection Program. Read more about how we keep you safe on our Trust and Security page. Next to our secure domain ownership transfer process, we strictly monitor all transactions. If anything looks weird, we take immediate action. And if the seller doesn't deliver on their part of the
2018/02/03 学生LT at freee
Preventing data leaks by stripping path information in HTTP Referrers To help prevent third party data leakage while browsing privately, Firefox Private Browsing Mode will remove path information from referrers sent to third parties starting in Firefox 59. Referrers can leak sensitive data When you click a link in your browser to navigate to a new site, the new site you visit receives the exact ad
Long gone are the days of using images and CSS sprites to make icons for the web. With the explosion of web fonts, icon fonts have become the number one solution for displaying icons in your web projects. Fonts are vectors, so you don’t have to worry about resolution. They benefit from the same CSS properties as text. As a result, you have full control over size, color, and style. You can add tran
Transcript தେن։ൃΛ 3FBDUͰߦ͏ݱ͔Β͍͑ͨ͜ͱ 3FBDU�KT�NFFUVQ���� None ٕज़తͳ͋·Γͳ͍Ͱ͢ தେنͳ։ൃΛߦ͏্Ͱ ۤ࿑ͨ͜͠ͱվળͨ͜͠ͱΛ͠·͢ ݱͷటष͍Ͱ͢ Έͳ͞Μ͕ࠓޙ։ൃΛߦ͏ࡍʹ ࢀߟʹͳΕͱࢥ͍·͢ ݱࡏߦͳ͍ͬͯΔ։ൃʹ͍ͭͯ ݱࡏߦͳ͍ͬͯΔ։ൃʹ͍ͭͯ � w� ϑϩϯτΤϯυͷ։ൃऀɿ։ൃॳ�ਓ ���������ݱࡏ�ʙ�ਓ΄ͲͱϕτφϜ։ൃڌʹਓ� � w� ։ൃ͍ͯ͠Δͷɿཧը໘� � w� ։ൃɿ�� � w� ༻ٕज़ɿ3FBDU� �3FEVY FO[ZNF FUDʜ� ςετॻ͔ͳ͍ͱޙʑࣗΛۤ͠ΊΔ ςετ͕ͳͥඞཁͳͷ͔ � w� Կϲ݄લʹ։ൃͨ͠ͷΛमਖ਼ͨ͠ͱ͖ɺ ��������खಈͰࢼݧ͢Δͷਏ͍ɻ � w� ։
Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message Primary eng (and PM) emails mk...@chromium.org Link to “Intent to Deprecate” thread https://groups.google.com/a/chromium.org/d/msg/blink-dev/UKF8cK0EwMI/NLhsIrs-AQAJ We deprecated this in early 2016, and failed to follow through with the removal. I'd like to try a
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