brackets

use brackets in checkbox name when using php and javascript?

折月煮酒 提交于 2019-11-30 14:30:20
i have a form with checkboxes like this: <input type="checkbox" name="type[]" value="1" />Fast Food<br> <input type="checkbox" name="type[]" value="2" />Table Service<br> <input type="checkbox" name="type[]" value="3" />Cafeteria<br> when i use the brackets in the name (type[]), my php works: $type=$_POST['type']; echo "types are:"; for ( $counter = 0; $counter < sizeof($type); $counter += 1) { echo "<br>".$type[$counter]; } but my javascript doesn't work: var f = document.addform; for (var i=0;i<f.type.length;i++){ if(f.type[i].checked==true){ break; } if(i==(f.type.length-1)){ alert("No

Rules for the use of angle brackets in Typescript

雨燕双飞 提交于 2019-11-29 21:00:28
What are the general rules that dictate when, where, how and why angle brackets, i.e. "<...>" , should be used in TypeScript? While I think I understand many individual uses of these brackets, I have a hard time seeing general patterns for their use: They sometimes seem to be prepended before things, sometimes appended after things; sometimes they are used for generics, sometimes for specific types; sometimes they appear where I might have naively expected the colon syntax to be used. I have a reasonably good understanding of TypeScript basics: In general, I've studied the TypeScript home page

use brackets in checkbox name when using php and javascript?

瘦欲@ 提交于 2019-11-29 20:27:23
问题 i have a form with checkboxes like this: <input type="checkbox" name="type[]" value="1" />Fast Food<br> <input type="checkbox" name="type[]" value="2" />Table Service<br> <input type="checkbox" name="type[]" value="3" />Cafeteria<br> when i use the brackets in the name (type[]), my php works: $type=$_POST['type']; echo "types are:"; for ( $counter = 0; $counter < sizeof($type); $counter += 1) { echo "<br>".$type[$counter]; } but my javascript doesn't work: var f = document.addform; for (var i

9.16 有效的括号 简单

99封情书 提交于 2019-11-29 19:58:59
题目: 给定一个只包括 '(',')','{','}','[',']' 的字符串,判断字符串是否有效。 有效字符串需满足: 左括号必须用相同类型的右括号闭合。 左括号必须以正确的顺序闭合。 注意空字符串可被认为是有效字符串。 示例 1: 输入: "()" 输出: true 示例 2: 输入: "()[]{}" 输出: true 示例 3: 输入: "(]" 输出: false 示例 4: 输入: "([)]" 输出: false 示例 5: 输入: "{[]}" 输出: true 代码: 1 import java.util.Stack; 2 class Solution { 3 public boolean isValid(String s) { 4 char[] brackets = s.toCharArray(); 5 Stack<Character> save = new Stack<Character>(); 6 int flag = 1; 7 for(int i = 0; i < brackets.length; i++){ 8 switch(brackets[i]){ 9 case '(': 10 case '{': 11 case '[': 12 save.push(brackets[i]); 13 break; 14 case ')': 15 if(!save

Using Javascript with Brackets in Field Name

天涯浪子 提交于 2019-11-29 16:11:47
How do I reference a HTML form element whose name contains brackets? For example, <form name="myForm"> <input type="checkbox" name="myElement[7]" /> </form> I do not have the option of renaming the form element and I cannot use jquery. How would I access this element using javascript alone? I already tried using: alert(document.myForm.myElement\\[7\\].type); The result is "undefined". I also tried the above javascript snipped without the slashes and also got "undefined". What is the correct syntax for javascript to access a field named with brackets? I believe you're looking for: alert(

how to remove brackets character in string (java)

久未见 提交于 2019-11-29 03:59:59
I want to remove all type of brackets character (example: [],(),{}) in string by using java. I tried using this code: String test = "watching tv (at home)"; test = test.replaceAll("(",""); test = test.replaceAll(")",""); But it's not working, help me please. To remove all punctuation marks that include all brackets, braces and sq. brackets ... as per the question is: String test = "watching tv (at home)"; test = test.replaceAll("\\p{P}",""); The first argument of replaceAll takes a regular expression. All the brackets have meaning in regex: Brackets are used in regex to reference capturing

What is the difference between square brackets and single quotes for aliasing in SQL Server?

六月ゝ 毕业季﹏ 提交于 2019-11-29 01:50:13
问题 I have seen some people alias column names using single quotes eg: select orderID 'Order No' from orders and others use square brackets eg: select orderID [Order No] from orders I tend to use square brackets. Is there any preference/difference? 回答1: To answer the question "is there any preference/difference": Yes, there are as many preferences as there are opinions, but be careful whose preferences you adopt. As a best practice, it is advisable to write portable SQL if it doesn't require any

issue with brackets in jQuery Form Data when sending data as json

爱⌒轻易说出口 提交于 2019-11-28 20:35:18
I have the object var dataformdata={"key1":"value1","key2":"value2"}; then I add some more values with the same key(key3) like this dataformdata.key3 = []; dataformdata.key3.push("value3"); dataformdata.key3.push("value4"); I do the above in an each slope. It all works except when sending the dataformdata object via the jQuery ajax function in the browser console I see that there are brackets in the key ... $.ajax({ type: "POST", url: "/", data: dataformdata, ... This is what I see in the browser console: key1:value1 key2:value2 key3%5B%5D:value3 key3%5B%5D:value4 It should work because in the

What does enclosing a class in angle brackets “<>” mean in TypeScript?

梦想的初衷 提交于 2019-11-28 20:08:13
I am very new to TypeScript and I am loving it a lot, especially how easy it is to do OOP in Javascript. I am however stuck on trying to figure out the semantics when it comes to using angle brackets. From their docs, I have seen several example like interface Counter { (start: number): string; interval: number; reset(): void; } function getCounter(): Counter { let counter = <Counter>function (start: number) { }; counter.interval = 123; counter.reset = function () { }; return counter; } and interface Square extends Shape, PenStroke { sideLength: number; } let square = <Square>{}; I am having

Rules for the use of angle brackets in Typescript

丶灬走出姿态 提交于 2019-11-28 17:11:24
问题 What are the general rules that dictate when, where, how and why angle brackets, i.e. "<...>" , should be used in TypeScript? While I think I understand many individual uses of these brackets, I have a hard time seeing general patterns for their use: They sometimes seem to be prepended before things, sometimes appended after things; sometimes they are used for generics, sometimes for specific types; sometimes they appear where I might have naively expected the colon syntax to be used. I have