| req_body.is_editable = true |
| <div></div> | |
| <script> | |
| -[1,]||(function(){ | |
| var i,o,s=[ | |
| "Unknown","UList","Title","TextArea","TableSection", | |
| "TableRow","Table","TableCol","TableCell","TableCaption", | |
| "Style","Span","Select","Script","Param","Paragraph", | |
| "Option","Object","OList","Meta","Marquee","Map","Link", | |
| "Legend","Label","LI","Input","Image","IFrame","Html", | |
| "Heading","Head","HR","FrameSet","Frame","Form","Font", |
| function props(obj) { | |
| var p = []; | |
| for (; obj != null; obj = Object.getPrototypeOf(obj)) { | |
| var op = Object.getOwnPropertyNames(obj); | |
| for (var i=0; i<op.length; i++) | |
| if (p.indexOf(op[i]) == -1) | |
| p.push(op[i]); | |
| } | |
| return p; | |
| } |
| var svg = d3.select("body").append("svg").attr("width", 100).attr("height", 100); | |
| var rect = svg.append("rect").attr("x", 40).attr("y", 40).attr("height", 10).attr("width", 10); | |
| rect.on("click", function() { | |
| console.log("rect"); | |
| d3.event.stopPropagation(); | |
| }); | |
| svg.on("click", function() { console.log("svg"); }); |
| https://developers.google.com/speed/docs/insights/rules?hl=zh-cn |
| (function(){ | |
| var ua = navigator.userAgent.toLowerCase(); | |
| var t; | |
| var config = { | |
| /*scheme:必须*/ | |
| scheme_IOS: 'sinaweibo://home', | |
| scheme_Adr: 'sinaweibo://splash', | |
| download_url: document.getElementById('J-download-app').value, | |
| timeout: 600 | |
| }; |
| (function (canvas) { | |
| var names = ['webgl', 'experimental-webgl', 'webkit-3d', 'moz-webgl'] | |
| var context = null; | |
| for (var i = 0; i < names.length; ++i) { | |
| try { | |
| context = canvas.getContext(names[i]) | |
| alert(names[i]) | |
| } catch (e) { | |
| } | |
| if (context) { |
| #!/usr/bin/env sh | |
| # Generate an AUTHORS file based on the output of git shortlog. It uses ABC | |
| # order, strips out leading spaces and numbers, then filters out specific | |
| # authors. | |
| git shortlog -se \ | |
| | perl -spe 's/^\s+\d+\s+//' \ | |
| | sed -e '/^CommitSyncScript.*$/d' \ | |
| > AUTHORS |
| var is360 = function(){ | |
| try { | |
| if(/UBrowser/i.test(navigator.userAgent)){ | |
| return ''; | |
| } | |
| if (typeof window.scrollMaxX !== 'undefined') { | |
| return ''; | |
| } |
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParentelem.clientLeft, elem.clientTop, elem.clientWidth, elem.clientHeightelem.getClientRects(), elem.getBoundingClientRect()