To Do List in JavaScript/HTML -

-

I have prepared the list to do this and almost everything is working right. However, if I delete everything in the list, it will not add me a new entry and I can not seem to know why

Thanks very much for any help. 

  & lt; Head & gt; & Lt; Script type = "text / javascript" & gt; / * & Lt ;! [CDATA [* / function addTask () {if (document.forms [0] .newtask.value == "") window.alert ("You must enter a value in the new workspace."); Else {if (document.forms [0] .task option [0] .value == "work") document.forms [0]. Tasks.options [0] = null; Var newTask = new option (); NewTask.value = document.forms [0] .newtask.value; NewTask.text = document.forms [0] .newtask.value; Var numTasks = document.forms [0]. Tasks. Options.length; Document.forms [0]. Tasks. Option [numTasks] = newTask; Document.forms [0] .newtask.value = ""; }} Function deleteTask () {var selectedTask = 0; Var WorkSocial = False; While (Selected Tasks & lt; document.forms [0] .tasks.length) {if (document.forms [0] .task option [selectedTask]. Selected == true) {taskSelected = true; break; } ++ selected tasks; } If (works == true) document.forms [0]. Tasks.options [selectedTask] = null; And window. Alert ("You must select a task in the list."); } Function ascendingSort () {var newTasks = new array (); (Var i = 0; i & lt; document.forms [0]. Task length; ++ i) {new task [i] = document.forms [0]. Tasks. Option [i] .value; } NewTasks.sort (); (Var j = 0; j & lt; document.forms [0] .tasks.length; ++ j) {document.forms [0]. Tasks. Option [j] .value = newTasks [j]; Document.forms [0]. Tasks. Option [j] .text = newTasks [j]; }} / *]] & Gt; * / & Lt; / Script & gt; & Lt; Title & gt; To Do List & lt; / Title & gt; & Lt; / Head & gt;  
  & lt; Body & gt; & Lt; H1 & gt; To Do List & lt; / H1> & Lt; Form action = "" & gt; & Lt; P & gt; New Job & lt; Input type = "article" size = "68" name = "new task" /> & Lt; / P & gt; & Lt; P & gt; & Lt; Input type = "button" value = "add task" onclick = "addTask ()" style = "width: 150px" /> & Lt; Input type = "button" value = "delete selected action" onclick = "deleteTask ()" style = "width: 150px" /> & Lt; Br / & gt; & Lt; Input type = "button" value = "ascending sort" onclick = "ascending order" style = "width: 150px" /> & Lt; / P & gt; & Lt; P & gt; & Lt; Select Name = "Work" size = "10" style = "width: 500px" & gt; & Lt; Option value = "task" & gt; Work & lt; / Options & gt; & Lt; / Select & gt; & Lt; / P & gt; & Lt; / Form & gt; & Lt; / Body & gt;

, Then empty with select , with any options .

With your addTask function 

  document.forms [0]. Tasks. Options.length & gt; 0

Something like this: 

  if (document.forms [0] .task options.length & gt; 0and document document [0] .task option. [0] .value == "work") document.forms [0]. Tasks. Option [0] = null;

View


Comments

Post a Comment

Popular posts from this blog

java - Can't add JTree to JPanel of a JInternalFrame -

-
Image
There are two panels in my JInternalframe. I want to add TopPanel to Jtree to nominate another. But I can not add Jaitari to the top of the panel. Please help me in this piece of code: DefaultMutableTreeNode root = new DefaultMutableTreeNode ("deck"); DefaultMutableTreeNode Item Clubs = New DefaultMutableTreeNode ("Club"); AddAllCard (itemClubs); Root.add (itemClubs); DefaultMutableTreeNode item = New DefaultMutableTreeNode ("Diamonds"); AddAllCard (itemDiamonds); Root.add (itemDiamonds); DefaultMutableTreeNode Itemspads = New DefaultMutableTreeNode ("Spades"); AddAllCard (itemSpades); Root.add (itemSpades); DefaultMutableTreeNode item increases = new DefaultMutableTreeNode ("heart"); AddAllCard (itemHearts); Root.add (itemHearts); Default Trimodel Tree Model = New DefaultTreeModel (Route); Tree = new jetty (tree modal); ScrollPane = new JScrollPane (tree); // scrollPane.setViewportView (tree); . ScrollPane.getViewport () add (tr
Read more

javascript - data.match(var) not working it seems -

-
OK, I have this small block code, which is to scanned a number on the website, but for some reason There is a hip that it is not scanning at all. var regenges = / \ & lt; Span class = "currency-robux" data-to-"item-private-value-price" & gt; ([\ D,]) \ & LT; \ / Span \ & gt; /; Var ValueCiling = Data. Match (reggae); Value-song = number (value slicing location (",", "")); Is there anything wrong with that? This is related to the if statement if (value sling and lieutenant; = price watching) { < P> A function calls to move from there, but for some reason it does not seem to run at all. So I think the Regex is wrong but I'm not sure how. (There is a variable in PriceWinking , this is a snippet from the code.) On the website, I'm trying to remove it. & lt; Span class = "robux" data-plus = "item-privatesale-price" & gt; 115 & lt; / Span & gt; Keep in mind
Read more

javascript - How can I pause a jQuery .each() loop, while waiting for user input? -

-
Before I continue to get a jQuery .each loop to wait for user input There is a problem in repeatedly repeating This is my code (I have commented on what I would like to do): & lt; Html xmlns = "http://www.w3.org/1999/xhtml" & gt; & Lt; Top & gt; & Lt; Link rel = "stylesheet" type = "text / css" href = "common_components.css" /> & Lt; Meta http-equiv = "content-type" content = "text / html; charset = UTF-8" /> & Lt; Link rel = "stylesheet" href = "slider.css" & gt; & Lt ;? Php include_once 'common_components.php'; $ Query = $ dbh- & gt; Queries ("SELECT movies_dir FROM settings"); $ Line = $ query- & gt; Obtain (PDO :: FETCH_ASSOC); Date_default_timezone_set ('UTC'); Echo "& lt; title & gt; movie scanner & lt; / title & gt;"; ? & Gt; & Lt; Script src = "jquery.min.js" & gt; &am
Read more