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Method One, tested all IE kernel browsers are available The code is as follows Copy Code JavaScript DocumentCall methodvar test=new pagetoexcel ("Data", 0,255, "test. xls");//table ID, line start, last line color, saved

One, the dropdown event Pull Up Event

[Javascript] try {fun1 ();} catch (e) {alert (e) ;}; try {fun2 ();} catch (e) {alert (e) ;}; functionfun1 () {alert (& quot; thisfun1. & quot;) ;} varfun2function () {alert (& quot; thisisf [Javascript]Try {Fun1 ();} Catch (e ){Alert (e );}; Try

Javascript (js) decimal point addition, subtraction, multiplication, division, is a js bug such as 0.3*1 = 0.2999999999, the following lists the four js algorithms that can perfectly find the corresponding precision // division function accDiv (arg1,

In javascript, when you use decimal places for addition, subtraction, multiplication, division, you will find that the result is sometimes followed by a long decimal point, which makes the operation complex and affects the calculation result. The

In javascript, there will always be many decimal places during data operations with decimal places. this is because in javascript, floating point numbers are calculated in binary notation. In javascript, when you use decimal places for addition,

Copy codeThe Code is as follows:// For example, if the 7*0.8 JavaScript code is calculated as follows: 5.6000000000000005 // Addition function, used to obtain accurate addition results// Note: The addition result of javascript has an error, which is

Recently in a payroll accounting system, all operations in the foreground, so the use of JS to do.After the finish, by hand accounting, found a strange problem. Is the result of JS calculated with the calculator calculated results There is a

37.5*5.5 = 206.08 (JS calculates this result. I rounded it to two decimal places)I first suspected it was a rounding problem, and I used JS to calculate a result: 206.08499999999998.How can this happen? How can we multiply two digits with only one

Problem like this: 37.5*5.5=206.08 (JS figure out is such a result, I rounded to take two decimal places) I first suspect is rounding problem, directly with JS forget a result is: 206.08499999999998 how can this, Two numbers with only one decimal

The following code goes from: http://segmentfault.com/a/1190000000324193 Floating-point addition: The/** **  addition function, which is used to obtain the exact addition  **  explanation: the addition result of JavaScript will be error, which will

Division function Accdiv (arg1,arg2) {var t1=0,t2=0,r1,r2; Try{t1=arg1.tostring (). Split (".") [1].length}catch (e) {} try{t2=arg2.tostring (). Split (".") [1].length}catch (e) {} with (Math) {R1=number () (Arg1.tostring (). Replace (".", ""))

//js addition calculation//Call: Accadd (ARG1,ARG2)//return value: Exact result of Arg1 plus arg2functionAccadd (arg1,arg2) {varr1,r2,m; Try{r1=arg1.tostring (). Split (".") [1].length}Catch(e) {r1=0} Try{r2=arg2.tostring (). Split (".")

// Division function, used to obtain accurate division results // Note: There will be an error in the division result of JavaScript, which will be obvious when two floating point numbers are separated. This function returns a more precise

Ext.: http://bbs.csdn.net/topics/360259080Floating-point addition operationsfunction Floatadd (ARG1,ARG2) {var r1,r2,m;Try{r1=arg1.tostring (). Split (".") [1].length}catch (e) {r1=0}Try{r2=arg2.tostring (). Split (".") [1].length}catch (e)

Recently, I encountered a floating point operation problem on the front-end. I copied a piece of floating point operation code from the Internet, and found that there were still problems during the test. Now I have posted the modified Code to share

This article from: http://hi.baidu.com/bing2liuliu/item/6b201a48ea51c40b6dc2f0b6 37.5*5.5 = 206.08 (JS calculates this result, and I rounded it to two decimal places.) I first suspected it was A Rounding Problem. Then I used js to calculate the

Copy codeThe Code is as follows: // For example, if the 7*0.8 JavaScript code is: 5.6000000000000005 // Addition function, used to obtain accurate addition results// Note: The addition result of javascript has an error, which is obvious when two

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Solution idea: Decimal into an integer before the operation. The specific code is as follows:/*** Addition operation, to avoid the data added after the decimal point to produce multiple digits and the loss of computational accuracy.** @param num1