tostring

window.toString.call is undefined in IE8

由 两盒软妹~` 提交于 2019-12-01 17:15:48
When you run: window.toString.call("") everything's fine in FF/CH but in IE8 you get a script error. Investigating a bit more it turned out, that window.toString.call is undefined in IE8? You can also run this one: window.toString instanceof Function; // false alert(window.toString); // function toString() { // [native code] // } Why is that and how to solve it? And I started wondering how come jQuery works in the first place? window is a host object, and the ECMAScript Language Specification (3rd edition) does not require host objects to be derived from the native Object object. In IE (and

How make toString() method return Super Class private fields also along with its instance fields?

由 倖福魔咒の 提交于 2019-12-01 16:35:42
问题 Is there a way to make toString() include private fields of the super class ? I tried adding a super.toString() , no use however. Please see the code below Employee.java package test; public class Employee { private String name; private int id; private double salary; public Employee(String name, int id, double salary) { super(); this.name = name; this.id = id; this.salary = salary; } public double getSalary() { return salary; } @Override public String toString() { return "Employee [name=" +

How to change NaN string representation in C#?

由 邮差的信 提交于 2019-12-01 16:22:19
My program saves a pointcloud to file, where each pointcloud is a Point3D[,] , from the System.Windows.Media.Media3D namespace. This shows a line of the output file (in portuguese): -112,644088741971;71,796623005014;NaN (Não é um número) while I'd like it to be (on order to be correctly parsed afterwards): -112,644088741971;71,796623005014;NaN The block of code that generates the file is here: var lines = new List<string>(); for (int rows = 0; rows < malha.GetLength(0); rows++) { for (int cols = 0; cols < malha.GetLength(1); cols++) { double x = coordenadas_x[cols]; double y = coordenadas_y

How to “echo” a class?

由 a 夏天 提交于 2019-12-01 15:22:36
This is probably really easy but I can't seem to figure out how to print/echo a class so I can find out some details about it. I know this doesn't work, but this is what I'm trying to do: <?php echo $class; ?> What is the correct way to achieve something like this? James McNellis If you just want to print the contents of the class for debugging purposes, use print_r or var_dump . You could try adding a toString method to your class. You can then echo some useful information, or call a render method to generate HTML or something! The __toString method is called when you do something like the

tostring() is implicitly called… how?

由 馋奶兔 提交于 2019-12-01 14:23:52
In the following code, how is toString() is implicitly called? class Payload { private int weight; public Payload (int w) { weight = w; } public void setWeight(int w) { weight = w; } public String toString() { return Integer.toString(weight); } } public class testpayload { static void changePayload(Payload p) { p.setWeight(420); } public static void main(String[] args) { Payload p = new Payload(200); p.setWeight(1024); changePayload(p); System.out.println("p is " + p); } } This line: System.out.println("p is " + p); uses string concatenation, which is specified in section 15.18.1 of the JLS,

tostring() is implicitly called… how?

由 被刻印的时光 ゝ 提交于 2019-12-01 12:08:58
问题 In the following code, how is toString() is implicitly called? class Payload { private int weight; public Payload (int w) { weight = w; } public void setWeight(int w) { weight = w; } public String toString() { return Integer.toString(weight); } } public class testpayload { static void changePayload(Payload p) { p.setWeight(420); } public static void main(String[] args) { Payload p = new Payload(200); p.setWeight(1024); changePayload(p); System.out.println("p is " + p); } } 回答1: This line:

javascript toString()将数组转换成字符串

由 僤鯓⒐⒋嵵緔 提交于 2019-12-01 07:18:23
javascript toString()将数组转换成字符串 <!DOCTYPE html> <html> <head> <title>将数组转换成字符串</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <script type="text/javascript"> var arr = new Array(3) arr[0] = "北京" arr[1] = "上海" arr[2] = "广州" document.write(arr.toString()) </script> </head> <body> </body> </html> 　　 来源： https://www.cnblogs.com/rjbc/p/11667841.html

How to format a decimal without trailing zeros

由 [亡魂溺海] 提交于 2019-12-01 03:34:50
I've just learned that a decimal somehow remembers how much trailaing zero's were needed to store a number. With other words: it remembers the size of the fraction. For example: 123M.ToString() ==> resuls in: 123 123.00M.ToString() ==> resuls in: 123.00 123.450M.ToString() ==> resuls in: 123.450 I am looking for a formatting string or another trick to get rid of those "unneeded" trailing zeros, but keeping the significant digits. So: 123M.ToString() ==> resuls in: 123 123.00M.ToString() ==> resuls in: 123 123.450M.ToString() ==> resuls in: 123.45 Removing the zeros at the end of the new string

Weaving in toString() implementation with AspectJ

由 蓝咒 提交于 2019-12-01 03:32:20
Trying to weave in a default toString() method for a large number of DTOs, using compile-time weaving only. The goal is to return a JSON representation using the Jackson library. Followed the suggestions in this article , turned it into annotation-style aspect config, and ended up with the following code: public @Aspect class JsonToStringAspect { private interface JsonToString { public String toString(); } public static class JsonToStringImpl implements JsonToString { public String toString() { return SingletonJsonEncoder.toJsonString(this); } } @SuppressWarnings("unused") @DeclareParents

C# 对ToString(\"X2\")的理解

由 久未见 提交于 2019-12-01 02:52:00
转化为16进制字符串。 大写X：ToString("X2")即转化为大写的16进制。 小写x：ToString("x2")即转化为小写的16进制。 2表示输出两位，不足2位的前面补0,如 0x0A 如果没有2,就只会输出0xA Random rand = new Random()；有三个重载方法 rand.next()返回非负随机数 rand.next(minvalue,maxvalue)返回两者之间的随机数 int value=rand.Next(35);返回小于35的非负随机数。 Enumerable.Range(0, 16); //Get Random Number thru RNGCryptoServiceProvider byte[] randomBytes = new byte[8]; StringBuilder randomNumber = new StringBuilder(); using (var crypto = new RNGCryptoServiceProvider()) { crypto.GetBytes(randomBytes); foreach (var byt in randomBytes) { randomNumber.Append($"{byt:x2}"); } } 来源： https://www.cnblogs.com/sophieyyl/p
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