breakpoints

问题 How can I put break points in an HTML page in javascript functions to see values of variables as lines get executed. What is the easiest way of doing so? thanks 回答1: Use the keyword " debugger; " to attempt invoking a hard breakpoint. As long as your browser has Javascript Debugging enabled, then the debugger; statement will tell it to do it's thang and you'll be in a step-by-step debugger. The Firebug extension for Firefox is by far the easiest, but Internet Explorer's new built-in "

问题 While testing something, I had to replace string (many times!) while feeling lazy to stop debugger and write up my code. Instead I thought I can do this in Break condition to see if it works. So the break condition looks like this: (someString = someString.Replace(".xx.", ".yy.")) != "" Which would evaluate to true every time. But it doesn't do the assignment. Can someone explain why the condition is evaluated correctly, but assignment never happens? 回答1: You should do this in the Watch or

问题 I would like to programmatically set/create a breakpoint in another file at an arbitrary line number in Eclipse. I would love to see a generic solution, but I guess I have to rely on the Eclipse JDT plugin for it. How can I do that? I tried something like: JDIDebugModel.createLineBreakpoint(resource, typeName, lineNumber, -1, -1, 0, false, null); But I have two problems with it: I have to include a whole lot of libraries to my build path to make it work, e.g. /usr/local/eclipse/plugins/org

问题 I'm debugging a project for iOS 4.0 (simulator) in XCode 3.2.3, and all of a sudden the debugger just stopped working on me. It will hit the first breakpoint and freeze. It will not respond to single stepping, continuing, pausing, etc. I know I'm not the first person to complain about the XCode debugger, so does anyone have any sort of clue as to why this happens, or any sort of workaround? It has completely prevented me from getting anything done. 回答1: I found that switching to build active

问题 I was coding late yesterday (might be important) and debugging and breakpoints were working fine. Today, probably when I pressed some unknown shortcut, execution is not stopping on breakpoint. First thing I noticed is strange icon: but I found no option (basically because I do not know what I'm looking for) to switch it back... Currently it is crossed (I do not know what is that) but it is not disabled (icon is empty in such cases). 回答1: Enable breakpoints. Click Windows > Open perspective >

问题 $mq-grid: ( xs: 576px, sm: 768px, md: 992px, lg: 1200px )!default; $bp-fonts: ( .6rem, 1.1rem, 1.24rem, 1.4rem ); For example, I have 2 different $map s like the above. when the $map blocks set like that, is it possible to compare indexes from 2 different $map lists in SCSS? The code I imagine is like this: @for $i from 0 to length($bp-fonts) { @if mq-grid $val == $bp-fonts[$i] { // contents go here } } 来源： https://stackoverflow.com/questions/53516944/how-to-compare-2-different-lists-values

问题 I have created a website using Bootstrap 3 and media queries. This is my basic .css media query setup, using the mobile first approach. /* Custom, iPhone Retina */ @media only screen and (min-width : 320px) { } /* Extra Small Devices, Phones */ @media only screen and (min-width : 480px) { } /* Small Devices, Tablets */ @media only screen and (min-width : 768px) { } /* Medium Devices, Desktops */ @media only screen and (min-width : 992px) { } /* Large Devices, Wide Screens */ @media only

问题 The reference manual for the R strucchange package states: As the maximum of a sequence of F statistics is equivalent to the minimum OLS estimator of the breakpoint in a 2-segment partition it can be extracted by breakpoints from an object of class "Fstats" as computed by Fstats. Is the breakpoint extracted by the above approach always the same as the breakpoint extracted by applying coeftest to an object of class "breakpointsfull" when the "breaks" option is 1? In other words, is the

问题 Using firebug for Firefox, I can set a breakpoint in my JS code, refresh the page and the code will automatically pause at my breakpoint (my code runs on page load). When I do the same in Chrome Developer Tools (Ctrl + Shift + J), it does not stop at the breakpoints. How do I get the code to stop at the breakpoints? Also, my console.logs appear in firebug for Firefox, but not in the Chrome console. How do I get the Chrome console to display my console logs? 回答1: Breakpoints work for me; Press

问题 I'm having a problem in Visual Studio 2012/C# which is driving me crazy. I have a particular line of code in a C# file with NO breakpoint set. Every time this line should be executed the debugger interrupts the execution of my code like a breakpoint was set. The only difference i noticed is the arrow on the left hand side, indicating the current step. Usually this arrow is yellow (when a breakpoint is set). In my case it is grey. I have been searching for a solution but did not find anything