statements

What is the purpose of a code block that isn't part of an if/function etc

由 好久不见. 提交于 2019-12-13 19:30:12
问题 E.g. <?php echo "hello word"; $test = 1; { //sample php code inside code block } ?> Why is sample php code inside that code block. Is it purely to keep any variables defined inside it within the scope of the code block so no variables outside the code block get over written? 回答1: It is most probably just for readability, since it doesn't create a new variable scope or something like this. Also as from the manual: [...]Statements usually end with a semicolon. In addition, statements can be

IF Statement Multiple Answers - Same Result Javascript

由 扶醉桌前 提交于 2019-12-13 04:23:15
问题 Is their a method to have multiple right answers with the same result? function check(code){ if(code == (8 || 9 || 13 || 16 || 17 || 18 || 20 || 32)){ return true; } } I know I can use a switch statement, but I was wondering if their is anyway similar to this. I already tried using an array but its slow. I also realise that you can use && but I don't want to have to type code == a hundred times. 回答1: consider using an array function check(code){ return [8,9,13,16,17,18,20,32].indexOf(code) !=

SQL Server: How to parse code into its different statements

由 ≡放荡痞女 提交于 2019-12-11 19:04:38
问题 As a possible sotlution to SQL Server: How to find what lines are executed I proposed that I could add inserts statements after each statement. What would be an efficient way to split up code of a stored procedure into its different statements so that after each statement an extra insert statement with the previous line can be added? If the exact same line occurs more then once inside the procedure/function/trigger they also need to be made unique with some number. Comments and styling do not

Firebird multiple statements

由 匆匆过客 提交于 2019-12-10 14:53:20
问题 is there any way to execute multiple statements (none of which will have to return anything) on Firebird? Like importing a SQL file and executing it. I've been looking for a while and couldn't find anything for this. 回答1: Shouldn't the normal query-delimiter work? Like: Update stuff; Delete stuff; Update stuff; 回答2: Execute statement is exactly for that purpose. Works in IBExpert too, a simple example : execute block as begin Update stuff; Delete stuff; Update stuff; end Comprehensive guide,

program ignoring if statement, and printing True when False

由 南笙酒味 提交于 2019-12-09 03:43:44
问题 I am writing a simple program for a homework problem and It seems to be skipping my if statement. I have looked at other questions posed, and the problems there do not seem to be my problem so I am hoping you can help. def isWordGuessed(secretWord, lettersGuessed): if lettersGuessed == []: return False else: for i in lettersGuessed: if i in secretWord == False: return False else: if i == lettersGuessed[-1]: return True When I place in some print functions to see what it is doing, it

CollapsibleIfStatements

由 早过忘川 提交于 2019-12-07 05:02:25
问题 I recently stumpled upon the following warning using PMD (embedded in hudson), my code seems to suffer CollapsibleIfStatements , which I do not fully understand. The code looks like this // list to be filled with unique Somethingness List list = new ArrayList(); // fill list for (SomeObject obj : getSomeObjects()) { // interating if (!obj.getSomething().isEmpty()) { // check if "Something" is empty * if (!list.contains(obj.getSomething())) { // check if "Something" is already in my list **

CollapsibleIfStatements

由 筅森魡賤 提交于 2019-12-05 09:42:54
I recently stumpled upon the following warning using PMD (embedded in hudson), my code seems to suffer CollapsibleIfStatements , which I do not fully understand. The code looks like this // list to be filled with unique Somethingness List list = new ArrayList(); // fill list for (SomeObject obj : getSomeObjects()) { // interating if (!obj.getSomething().isEmpty()) { // check if "Something" is empty * if (!list.contains(obj.getSomething())) { // check if "Something" is already in my list ** list.add(obj.getSomething()); // add "Something" to my list } } } In my opinion this code isn't more

Dealing with large switch statements in CUDA

由 谁说胖子不能爱 提交于 2019-12-05 01:22:05
问题 I understand that branching in CUDA is not recommended as it can adversely affect performance. In my work, I find myself having to implement large switch statements that contain upward of a few dozen cases. Does anyone have any idea how badly this will affect performance. (The official documentation isn't very specific) Also does anyone have a more efficient way of handling this portion? 回答1: A good way to avoid multiple switches is to implement function table and select function from table

how to use “if” statements inside pipeline

由 ╄→尐↘猪︶ㄣ 提交于 2019-12-03 08:58:36
问题 I'm trying to use if inside a pipeline. I know that there is where (alias ? ) filter, but what if I want activate a filter only if a certain condition is satisfied? I mean, for example: get-something | ? {$_.someone -eq 'somespecific'} | format-table How to use if inside the pipeline to switch the filter on/off? Is it possible? Does it make sense? Thanks EDITED to clarify Without pipeline it would look like this: if($filter) { get-something | ? {$_.someone -eq 'somespecific'} } else { get

Java Boolean In 'IF' Statement Not Functioning [closed]

由 ⅰ亾dé卋堺 提交于 2019-12-02 13:31:04
Unfortunately the snippet of code below is not functioning as it should. It's attached to a JLabel so that when clicked, notices whether PlayerOne or PlayerTwo is playing, and re-arranges their boolean values accordingly [ex: When mouseClicked:If playerOne is true, then do something, and set playerOne to false and playerTwo to true]. So, it swaps their values when mouseClicked is activated! public void mouseClicked(MouseEvent arg0) { if(playerOne = true){ playerOne = false; playerTwo = true; boxOne.setIcon(xIcon); } else { if(playerTwo = true){ playerOne = true; playerTwo = false; boxOne
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