cross-browser | 易学教程

Math.random number of random bits

阅读更多关于 Math.random number of random bits

问题 Is there any requirement on how many random bits Math.random is supposed to produce? I did some tests on Chrome and Firefox's implementations, converting the results to hex to examine the bits, and Firefox 27.0.1 gives results like 0x1.de619579d56f3p-1 0x1.ef1ada9306decp-2 0x1.df3b75e208ce6p-1 whereas Chrome Version 33.0.1750.154 m gives 0x1.1190f39c00000p-2 0x1.b959e3b600000p-1 0x1.90f614b400000p-2 which is godawful in comparison. It appears to be a 32-bit result, whereas Firefox's values

Let Monaco Editor fill the rest of the page (cross-browser)

阅读更多关于 Let Monaco Editor fill the rest of the page (cross-browser)

问题 I want to embed a Monaco Editor in a page under some fixed texts, I want the height of the Monaco Editor to fill exactly the rest of the page. People gave me an answer here: JSBin: <html> <style> html, body, .rb { margin: 0; height: 100%; } .rb { display: table; width: 100%; border-collapse: collapse; } .top, .myME { display: table-row; } .buffer { display: table-cell; } .top .buffer { background: lightblue; height:1%; } .myME .buffer { background: tomato; } #container { position:relative; }

What's the difference between a browser engine, a rendering engine and a user agent?

阅读更多关于 What's the difference between a browser engine, a rendering engine and a user agent?

问题 What is the role of user agent switcher? https://addons.mozilla.org/en-US/firefox/addon/59 Is the user agent different than the rendering engine? If a browser uses the same rendering engine then do we need to check on every browser? 回答1: A rendering engine is the engine that a browser uses to render the html (i.e. gecko vs webkit). A user agent is how a browser identifies itself (i.e firefox 3.5). But even if you switch the user agent of lets say firefox to safari, it will still use the gecko

Browser (Webkit, IE, Firefox) Change background for select

阅读更多关于 Browser (Webkit, IE, Firefox) Change background for select

问题 I have been trying to get rid of the default gradient background in Website. I know if I set the -webkit-appereance:none this would be possible but then I will lose the arrows and other behaviors in the dropdown that I want. Is there anyway of setting the background to white with the -webkit-appearance: menulist ? This is what I have but the background does not change .ius select{ -webkit-appearance: menulist; -moz-appearance: menulist; appearance: menulist; height:32px; border:1px solid

Detect file type on dragenter cross browser solution

阅读更多关于 Detect file type on dragenter cross browser solution

问题 I'm searching for a cross browser solution for this. In advance i tell you that i don't want to know if is a file only, because i found solutions for that. I want to know if the file is an audio, image or video basically. In Chrome when you fire the dragenter event you can get that data from here: ev.originalEvent.dataTransfer.items[0].type; But in Firefox, Safari and IE the "items" spec hasn't been applyed yet: https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/items In those

Media queries and scrollbar width

阅读更多关于 Media queries and scrollbar width

问题 I am working on a layout that needs precise media query handling. One of my issues is the crossbrowser scrollbar width as it is different according to browsers and most (all of them?) include it in the window width. As we can see in these 2 examples, the media queries don't act at the same window size with and without the vertical scrollbar : Test without scrollbar Test with scrollbar In the first example, you can see the background color change exactly at 800/700/600px window width. In the

Jquery equivalent/ Browser compatibility for e.parentNode.parentNode.childNodes[i].innerText;

阅读更多关于 Jquery equivalent/ Browser compatibility for e.parentNode.parentNode.childNodes[i].innerText;

问题 I am using the following snippet for updating some textbox value from a table. <table> <tr> <td> ProjectName </td> <td> Block </td> <td> .WorkProgressMilestone </td> <td> Completion </td> <td> <span class="sep"> <img height="15px" width="20px" src="@Url.Content("~/Content/themes/base/images/Edit.png")" /></span><a href="#" onclick="EditWorkDetails(this);" style="text-decoration: none">Edit</a> <input id="WorkProgressEditID" name="WorkProgressEditID" type="hidden" value="@v.WorkProgressID" />

net::ERR_EMPTY_RESPONSE from PHP in AngularJs

阅读更多关于 net::ERR_EMPTY_RESPONSE from PHP in AngularJs

问题 I have payment section in my PHP project where payment response from the API is displayed in the frond-end using AngularJs. CURL is used for calling payment API from PHP end. After getting the response from payment API, I am updating the Database accordingly. The issue what i found is, I haven't continuously getting the API response in the angular side even-if all the backed functionalities are working properly. I have checked with many browser network tab, but in every failure case i have't

In the browser, how does one determine which flavour of line breaks is appropriate to the OS?

阅读更多关于 In the browser, how does one determine which flavour of line breaks is appropriate to the OS?

问题 \n or \r\n (or even \r ) in other words. I'm keen to avoid sniffing the user agent string. First attempt: var osLineBreak = (function () { var p = document.createElement('p'); p.innerHTML = '<br>'; return p.innerText; }()); Unfortunately Firefox does not provide innerText , and textContent returns the empty string in this case. Second attempt: var osLineBreak = (function () { var lineBreak, body = document.body, range = document.createRange(), selection = window.getSelection(), p = document

Which version of windows 7 should I buy to run under vmware fusion for web dev?

阅读更多关于 Which version of windows 7 should I buy to run under vmware fusion for web dev?

问题 Does it make a difference? All I'll be doing (for the most part) is running different browsers. I would think the most stripped down one possible would be best. Update: My dev box is a MacBook Pro (2010) with 8G ram, 2.4 GHz processor running Lion. 回答1: Ordinary Windows 7 installations are shipped with a full load of crap. Even the cleanest installs have a size of at least 10 GB. For that reason, I recommend to only use Windows 7 if you want to test IE9+ (which requires Vista+). The following