window.onload=getExif; function getExif() { var img1 = document.getElementById("img1"); EXIF.getData(img1, function() { var make = EXIF.getTag(this, "Make"); var model = EXIF.getTag(this, "Model"); var makeAndModel = document.getElementById("makeAndModel"); makeAndModel.innerH...
一般情况下,都是用return代替。 return的作用是中断函数的执行,提前退出该函数。所以在执行某个函数内部的时候可以通过返回return来退出js执行。 见例子: // 错误情况,exit不存在对象,在ie下会报错 $('.water .action .good_btn').live('click',function(){ checkLogin(0); var parent = $(this).parent()...
Function GetLength(strChinese1) Dim strWord, ascWord, lenTotal strChinese1 = Trim(strChinese1) If strChinese1 = "" Or Vartype(strChinese1) = vbNull Then GetLength = 0 Exit Function End If lenTotal = 0 For GetLengthi=1 to Len(strChinese1) strWord = Mid(strChinese1, GetLengthi, 1)...
// WinDbg JavaScript sample // Adds two functions function addTwoValues(a, b) { return a + b; } 使用文本编辑器(如记事本)创建名为FirstSampleFunction.js的文本文件 使用.scriptload 命令加载脚本。 dbgcmd 0:000> .scriptload c:\WinDbg\Scripts\FirstSampleFunction.js JavaScript script successfully ...
Imagine we have to write a function that does tax calculations. How are you going to do this in JavaScript? We can implement such a function as shown in Listing 1-1.var percentValue = 5; var calculateTax = (value) => { return value/100 * (100 + percentValue) } Listing 1-1...
javascript 有没有php中的exit()函数呢? 是完全中断程序; return false;不适合用; 因为 function sample_one() { return false; } function sample_two() { sample_one() alert(1); } sample_two(); 执行结果:alert(1)可以正常执行;javascript ...
DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code. 所以,最好去捕获错误。 (6)使用 Promise 处理定时器错误 对于计时器或事件,不能捕获回调抛出的异常。上面有一个例子: ...
child.on('exit', function(code) { clearTimeout(timer); setImmediate(function(){ if (!stdout) { hollaback({ result: 'Error', console: [] }); } else { var ret; try { ret = JSON.parse(stdout); } catch (e) { ret = { result: 'JSON Error (data was "'+stdout+'")', ...
functionexitFullscreen(){letelem = parent.document; elem.webkitCancelFullScreen ? elem.webkitCancelFullScreen() : elem.mozCancelFullScreen ? elem.mozCancelFullScreen() : elem.cancelFullScreen ? elem.cancelFullScreen() : elem.msExitFullscreen ...
functionexitScreen(){letel=documentletcfs=el.cancelFullScreen||el.webkitCancelFullScreen||el.mozCancelFullScreen||el.exitFullScreen//typeof cfs != "undefined" && cfsif(cfs){cfs.call(el)}elseif(typeofwindow.ActiveXObject!=="undefined"){letwscript=newActiveXObject("WScript.Shell")if(wscript!=nu...