More Than One Return Statement In Function?
Jun 29, 2011
I have a desire to include more than one return statement in a function I have written so that when it has found the solution to a hit-testing series of conditionals, it returns the solution. The desire is to avoid further hit-tests when solution has been found. I've always felt that more than one return statement in a function is poor style, since it may lead to false execution of a function - by way of a later code edits - making a mistake by forgetting the multiple returns. My function is short and maybe the optimisation exists only in my head but are there serious reasons why one should not have more than return statement? This JS code executes in the Quartz Composer framework and has nothing to do with we programming (context (-:)
Here it is with three returns, it 'works' and I could replace all the break statements with return statements to finish optimizing:
//Test for y inside range for all quads ( Quad is defined by 4 points in a row in the list is a quad ie. list[0-3], list[4-8],
//Test along the unit numerals (_N) and also the 'Revert Patch' button
if (y >a[0]["Y"] && y <a[2]["Y"]) {
for (i=0; i <37; i+=4) {
//Log("DDDDDDD "+i+" X:"+x+" Y:"+y); .....
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Nov 7, 2009
What is return statemen? what is functionn statement ? how can i write my frist program through return statement?
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Mar 17, 2009
I dont present this information right, Im trying to make the most basic array, where if the objects in the array are found I need to return a true false statement. I cant get it to return a True Statement at all. Here is my code.
var GROUPTAGS =new Array("HOT","Hot","hot","H.O.T");
var TEST1 = "APB-HOT";
CHECK_FOR_TAGS_1 = TEST1;
for(var i in GROUPTAGS)
[Code]...
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Feb 4, 2006
I have the following script:
function myFunc() {
// some code to do with AJAX
http_request.onreadystatechange = function() {
// do some things
return "a string";
}
}
alert(myFunc());
However, when I return "a string"; I want that string to be returned by myFunc() (and therefore alert'ed). What seems to be happening is that the string is being returned by the http_request.onreadystatechange = function() { } function, and myFunc() just returns false. How can I make the string be returned by myFunc()?
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Mar 10, 2010
I've got an annoying non-working bit of code:
<div id ="messageDiv" style="display:block;">No profile information entered yet</div>
<script type="text/javascript">
function profileInfo() {
var m1 = document.getElementById("marital1").innerHTML.toLowerCase();
var b1 = document.getElementById("bodytype1").innerHTML.toLowerCase();
[Code]...
The first part up to before the 'else if' works. but if the 'w1' has [URL] it still doesnt return true and display the DIV block??
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Feb 14, 2011
I'm trying to "progressively enhance" one of my surveys using javascript. Basically, I have rating scales that make use of radio buttons as each point on the scale. Each radio button occupies its own cell in a table. I wrote some functions that will highlight cells on mouseover in a color corresponding to its position on the scale (e.g. the lowest point is red, the midpoint is yellow, the highest point is green). When a radio button is clicked, the background of the button's cell and preceding cells in the same row will be colored accordingly. The functions are working well in FireFox and Chrome (I just have to add a few lines using the addEvent function to make it compatible with IE).
The effect looks a lot nicer when I add a function that makes the visibility of the radio buttons hidden.
However, I want to make sure that there is a fallback option in case the functions that color the cells don't work for whatever reason. I would not want the radio buttons hidden in this case.
Is there a method whereby I can call the "hideRadiobuttons" function only if the other functions are successfully executed?
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Aug 7, 2009
i've got a function which makes a call to the database( via jquery $.post) to check if a username already exists. All the data I get back is fine and both the conditional statment works as intentded. I just can't get the function to return a value to the other function that calls it. Could this be something to do with the scope.
Code:
function checkIfUsername(o)
{
$.post(""+CI_ROOT+"index.php/admin/check_if_username",{
username: username.val()
}, function(data){
if(data.bool == true){
[Code]....
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Oct 5, 2011
we are using Map guide for viewing maps and printing.
while printing a map the above mentioned error (Returned statement outside of function) is coming
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Oct 19, 2005
I debugged some html file and found this:
------------------------------------------------------------
<script language="JavaScript">
if ( some_statement ) {
function MyFunction ( some_argument ) {
some_function_statements;
}
}
</script>
------------------------------------------------------------
Is it allowed to define a function INSIDE some 'if' statement?
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May 25, 2009
I would like to know whether a jquery click function can be used in an"if" statement.The reason why I am asking, is because I haven't seenany examples of this being done on the web. I want to use thisapproach because currently Jquery keeps initiating two events from onemouse click, eventhough the css for each element is different.Ithink the best way to avoid this problem is to use flow control toexclude the other mouse click event. If element A is clicked then
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Aug 9, 2010
if i group some javascript into a function that returns false; how could i carry that 'false' out of the function so it can be used outside the function.the example below shows the validate function checks for a condition then returns false if it is met. i want this false to then be passed out of the function to then throw an error in its containing function. (goal to prevent the submitting of a form)i dont want the proceed function to be called, so how can the other function prevent this.Now i realise that the validate function could be incorporated into the top level function but, my form will eventually be quite large with a multiplitude of fields so i need to know how i can call back to functions and use them as objects insteasd of repeating lots of code.
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Jun 24, 2010
I have a simple FAQ show/hide function set up however I am having trouble setting up an if clause. My code is:
$(document).ready(function(){
$("dd").hide();
$("dt").click(function(){
$("dd").hide('slow');
$(this).next().slideToggle();
});
});
However, when you click on the same item twice it firstly hides and then reshows it, I need an if statement that basically states;
if "this?!" is visible/shown
Then do nothing
else
$("dd").hide('slow');
$(this).next().slideToggle();
I am unsure of the syntax and can't figure out what property I can trace out to see if the item is being shown or not.
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Apr 29, 2010
Why my page is not redirecting within the if then statement.
Here is the code:
I have tried this without the if then statement and it works fine. I am not sure why my if then statement will not work within success function, am I doing something wrong?
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Jan 18, 2010
Is there a way to call a javascript function in a meta refresh statement? I'm refreshing my page but if I have data in my fields I don't want to loose them. If I can call using a JS function then in that function I can call the Submit function and save my data in the called script.
My syntax below doesn't fire the JS function:
<meta http-equiv="refresh" content="30;url=javascript:auto_refresh();">
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Dec 4, 2009
I have an ID like this: $('#id').click(function(event){Do stuff after click
}); Can I have it also have a conditional or statement
$('#id').click || $variabe=='something' (function(event){
});
What is the proper syntax for something like that?
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May 17, 2009
Afternoon all, Have a pretty simple function, that requests a number to be entered.
I want to return that number, but i seem to be typing something wrong in the return value.
function newFunction(a, b)
{
var newArray = new Array(a);
for (var i = 0; i < 5; i = i + 1)
[Code]....
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Aug 21, 2007
I am populating a field on my page using a php include. I am asking javascript to update another element with that field's value. The value written to the select input box is Ƈ:Any Provider'. The process works fine in Firefox. In IE6 it does not write. the value nor does it throw an error. What am I doing wrong?
input form:
[PHP]<form method="post" action="" name="inputForm">
<label for="provider">Name of Provider</label><select class="input" name="provider" size="1" style="width: 20em"><?php nameprov();?></select>
<input type="button" name="button" value="Upload" onclick="postthis()">
<div id="status"></div>
</form>
The script in the head element:
function postthis(){
var provider = document.inputForm['provider'].value;
var report = document.getElementById("status");
var message="The Value of Provider Block is: " + provider;
report.innerHTML = message;
}
In firefox, "The Value of Provider Block is: 1:Any Provider" is written in the report element. In IE6, "The Value of Provider Block is : " is written in the report element.
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Nov 23, 2005
I know the answer must be yes, but I am really having a hard time figuring this out. I have a simple script below, that calculates age (I know I need to do some more work). I want to redisplay the value returned from the function. It works OK, because the result displays correctly in the alert. Code:
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Mar 6, 2006
I have a form and a submit button .on clicking submit button function validate call.this function call another function (say func) .this func function vallidates some input and return true or false value to the validate function this then return true or false value to the submit button .I want that func directly return true or false to the submit button.
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Jun 13, 2011
How can I use the return value from prev_picked() in my ajax call?
Code JavaScript:
function autosuggest_results (info)
{
if (info.length > 1)
[Code].....
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Jul 23, 2005
I am getting syntax errors in my JavaScript code, code snippet as follows
(between my <script></script> tags:
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Jan 17, 2010
Basically I want to have a different background image for every time of the day. The function by itself works okay with onclick or onload placed in body.
function changesky()
{
document.getElementById("sky").style.background="url(back_morning.jpg) repeat-x";
[code]....
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Jul 11, 2006
Can javascript using pointer or pass variable by reference?
Or I need to using object or Array to return the two values?
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May 4, 2009
I have a multiple choice quiz that works fairly well. However, instead of it presenting "End of Quiz" message when last question is completed I need it to take the user back to the beginning (question 1) but with no indication to the user that this has been done. How can I adjust the code to have it do this?
<script language="JavaScript1.1">
var whichone=1
var tempmn=document.quiz.thequestion
function generatequestions(){
document.quiz.theresponse.selectedIndex=0
[Code]...
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Sep 7, 2009
I want to pass a javascript function's return value, to an anchor tag's href parameter i.e. <a href>
Suppose I have a function called getTrackingCode( ) that contains a value "testSite"
<script language = "JavaScript">
function getTrackingCode( )
{
return "testSite";
}
</script>
Now I want to pass this function's value to anchor's href, I have attempted these:
[Code]...
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May 11, 2009
I've been reading up on Javascript. I read that you can use:
document.write("<h1>My Test</h1>");
So I wrote a little script:
<script type="text/javascript">
var choices = new Array();
choices[0] = "<img src=\"crush.png\" />";
choices[1] = "<img src=\"curse.png\" />";
choices[2] = "<img src=\"endless.png\" />";
choices[3] = "<img src=\"eyes.png\" />";
[Code]...
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