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  • when using javascript how do you use select form to do if else statements?

    - by Nelson
    How do you take a value of an option in a select form and use it for a if else statement? for example if apple is selected as an option then write to the document how to make applesauce but orange is selected then write how to make orange? so far I have a basic form and select options and I know how to do the document.write but I dont know how to use a select form with if else thanks for the help

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  • C segmentation fault before/during return statement

    - by wolfPack88
    I print the value that I'm returning right before my return statement, and tell my code to print the value that was returned right after the function call. However, I get a segmentation fault after my first print statement and before my second (also interesting to note, this always happens on the third time the function is called; never the first or the second, never fourth or later). I tried printing out all of the data that I'm working on to see if the rest of my code was doing something it maybe shouldn't, but my data up to that point looks fine. Here's the function: int findHydrogen(struct Amino* amino, int nPos, float* diff, int totRead) { struct Atom* atoms; int* bonds; int numBonds; int i; int retVal; int numAtoms; numAtoms = (*amino).numAtoms; atoms = (struct Atom *) malloc(sizeof(struct Atom) * numAtoms); atoms = (*amino).atoms; numBonds = atoms[nPos].numBonds; bonds = (int *) malloc(sizeof(int) * numBonds); bonds = atoms[nPos].bonds; for(i = 0; i < (*amino).numAtoms; i++) printf("ATOM\t\t%d %s\t0001\t%f\t%f\t%f\n", i + 1, atoms[i].type, atoms[i].x, atoms[i].y, atoms[i].z); for(i = 0; i < numBonds; i++) if(atoms[bonds[i] - totRead].type[0] == 'H') { diff[0] = atoms[bonds[i] - totRead].x - atoms[nPos].x; diff[1] = atoms[bonds[i] - totRead].y - atoms[nPos].y; diff[2] = atoms[bonds[i] - totRead].z - atoms[nPos].z; retVal = bonds[i] - totRead; bonds = (int *) malloc(sizeof(int)); free(bonds); atoms = (struct Atom *) malloc(sizeof(struct Atom)); free(atoms); printf("2 %d\n", retVal); return retVal; } } As I mentioned before, it works fine the first two times I run it, the third time it prints the correct value of retVal, then seg faults somewhere before it gets to where I called the function, which I do as: hPos = findHydrogen((&aminoAcid[i]), nPos, diff, totRead); printf("%d\n", hPos);

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  • What's wrong with this statement in perl?

    - by benjamin button
    print "$_", join(',',sort keys %$h),"\n"; It's giving me an error below: Use of uninitialized value in string at missing_months.pl line 36. 1,10,11,12 this print statement is present in a for loop as below: foreach my $num ( sort keys %hash ) { my $h = $hash{$num}; print "$_", join(',',sort keys %$h),"\n"; }

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  • why is optional chaining required in an if let statement

    - by b-ryan ca
    Why would the Swift compiler expect me to write if let addressNumber = paul.residence?.address?.buildingNumber?.toInt() { } instead of just writing: if let addressNumber = paul.residence.address.buildingNumber.toInt() { } The compiler clearly has the static type information to handle the conditional statement for the first dereference of the optional value and each following value. Why would it not continue to do so for the following statements?

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  • need help with a simple SQL update statement.

    - by Tony
    There's a field with type of varchar. It actually stores a float point string. Like 2.0 , 12.0 , 34.5 , 67.50 ... What I need is a update statement that remove the ending zeros of fields like 2.0 , 12.0 , change them to their integer representation , that is 2 , 12 ...,and leave 3.45 , 67.50 unchanged . How should I do this ? I am using oracle 10.

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  • Styling an If Else Statement

    - by ThatMacLad
    I know that it's not possible to style any given PHP but I do know that it is possible to style the output HTML that the PHP provides you with. I was wondering if there was any method available for me to use that would enable me to style the output from my IF ELSE statement. if ($result != false) { print "Your entry has successfully been entered into the blog."; }

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  • Getting multiple aggregations in Single statement

    - by Harikrishnan R
    The table has data of city and its branchs/atms CITY TYPE NAME ---------------------------------- agra atm X agra branch X1 delhi atm X2 agra atm X3 agra atm X4 delhi branch X5 chennai branch X6 The result set expecting is CITY ATM BRANCH ------------------------------------ agra 3 1 delhi 1 1 chennai 0 1 Whether we can do this in one select statement.

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  • Constructing an if statement from the client data in python

    - by Vishal
    Hi, I need to construct an if statement from the data coming from the client as below: conditions: condition1, condition2, condition3, condition4 logical operators: lo1, lo2, lo3 (Possible values: "and" "or") Eg. if condition1 lo1 condition2 lo3 condition4: # Do something I can think of eval/exec but not sure how safe they are! Any better approach or alternative? Appreciate your responses :) PS: Client-side: Flex, Server-side: Python, over internet Thanks

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  • jquery - if else if?

    - by YesThatsRight
    I've been trying to figure out the syntax for an if / else if statement in jquery, but googling gives me mixed messages... There are some sites that say I need a plugin, and others that suggest that it's already possible. Trying those suggestions give me jquery errors in the jquery.js file, so I'm wondering, do I need a plugin or not? Does someone have an example of an if () { //do something } else if () { //do something else } else { //do something } in jquery?

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  • Is this MySql Query Statement correct?

    - by Stanley Ngumo
    Hi I would like to know whether this MySql statement will be executed correctly, "SELECT sum(price) FROM products WHERE productid IN (SELECT productid FROM shoppingcart WHERE sessionid=".$this->$sessionid.")" And if not please give me pointers as to where I am wrong. Thanks

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  • how to generate the "create table" sql statement for an existing table in postgreSQL

    - by Raja
    I have a table created long ago in postgreSQL. Now i want to look at the sql statement used to create it but cannot figure it out. Also when i do the \dS+ tablename it says table not found, but \dt+ tablename is working fine. The \dS+ lists all the table names owned by the root postgres user and doesn't show up tables that i created with my user account. Any help is greatly appreciated. Thanks

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  • Can I write this JQuery statement cleaner?

    - by Polaris878
    Hello, So I have the following: var box = $(".MyCheckBox"); if (box[0].checked) { // Do something } else { // Do something else } Is there a better way of doing this using filters or something? I know I can go: $(".MyCheckBox") .filter(function(index) { return this.checked; }) .each(function() { // do something }); But I need to do something in the else statement... easier way of doing this? Thanks!

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  • Nhibernate generate plain sql query instead of execution statement

    - by Wei Ma
    Using SQL profiler, I was able to find the query generated from Nhibernate was executed in the EXEC sp_executesql N'select ...' fashion. I am wondering if there is any way to force Nhibernate to generate the plain Select ... statement instead. The reason I want this is because apparently SQL Server generated different execution plans for them, and in my scenario, the plain "select ..." runs MUCH faster.

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  • Auto-complete editor for SQL statement

    - by Stan
    Is there any plugings or text editor to auto-complete SQL statement? I am using SQL Server Management Studio (ssms) 90% of time, but most of time I have to type SELECT FROM WITH(NOLOCK) WHERE blahblah. Trying to find a more efficient way. Thanks.

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  • PreparedStatement.setString() method without quotes

    - by Slavko
    I'm trying to use a PreparedStatement with code similar to this: SELECT * FROM ? WHERE name = ? Obviously, what happens when I use setString() to set the table and name field is this: SELECT * FROM 'my_table' WHERE name = 'whatever' and the query doesn't work. Is there a way to set the String without quotes so the line looks like this: SELECT * FROM my_table WHERE name = 'whatever' or should I just give it up and use the regular Statement instead (the arguments come from another part of the system, neither of those is entered by a user)?

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  • jquery validatie if statement

    - by Mariana Hernandez
    i have this validate function: var validator =$('#form1').validate( { ignore: "", rules: { usu_login: { required: true }, usu_email: { required: true }, usu_nombre1: { required: true }, usu_apellido1: { required: true }, usu_fecha_nac: { required: true }, usu_cedula: { required: true }, usu_telefono1: { required: true }, usu_password: { required: function() { return focusout == true; } }, usu_password2: { required: function() { return focusout == true; } }, usu_password3: { required: function() { return focusout == true; }, equalTo: "#usu_password2" } i need to apply the same if statement in the "equalTo" fuction so this can work as i want to, but i dont know how to do that. Dows anyone knows? Thanks

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  • Reset SQL variable inside SELECT statement

    - by Jason McCreary
    I am trying to number some rows on a bridge table with a single UPDATE/SELECT statement using a counter variable @row. For example: UPDATE teamrank JOIN (SELECT @row := @row + 1 AS position, name FROM members) USING(teamID, memberID) SET rank = position Is something like this possible or do I need to create a cursor? If it helps, I am using MySQL 5.

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  • I want to do a sql update loop statement, by using the do--while in php

    - by Jean
    Hello, I want to loop the update statement, but it only loops once. Here is the code I am using: do { mysql_select_db($database_ll, $ll); $query_query= "update table set ex='$71[1]' where field='val'"; $query = mysql_query($query_query, $ll) or die(mysql_error()); $row_domain_all = mysql_fetch_assoc($query); } while ($row_query = mysql_fetch_assoc($query)); Thanks Jean

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