What is the proper way to cocatenate strings inside if statement?
For ex.:
{if {site_url}{segment_1} == page_url} class="selected" {/if }
I need to concatenate *site_url* and *segment_1* then compare it to *page_url*.
On Expressionegine conditionals you can use
{if {var} == ''} or {if "{var}" == ''}
Maybe it work
{if "{site_url}{segment_1}" == "page_url"} class="selected" {/if }
Related
how to use ternary if else with two or more condition using "OR" and "AND" like
if(foo == 1 || foo == 2)
{
do something
}
{
else do something
}
i want to use it like
foo == 1 || foo == 2 ? doSomething : doSomething
If you're referring to else if statements in dart, then this ternary operator:
(foo==1)? something1():(foo==2)? something2(): something3();
is equivalent to this:
if(foo == 1){
something1();
}
elseif(foo == 2){
something2();
}
else something3();
For three conditions use:
value: (i == 1) ? 1 : (i == 2) ? 2 : 0
Try below
(2 > 3)?print("It is more than 3"):print("It is less than 3");
////Prints It is less than 3 to the console
For AND try this,
// here both or multiple conditions needs to satisfy
if (primaryImageUploaded == true && signatureImageUploaded == true) {
// status bool condition in true
} else {
// if false
}
For OR try this,
// here need ONLY any one condition to satisfy
if (primaryImageUploaded == true || signatureImageUploaded == true) {
// status bool condition in true
} else {
// if false
}
Another Dart Syntax
if (100 > 50) {
print("100 is greater than 50");
}
it is easy,
if(foo == 1 || foo == 2)
{
do something
}
{
else do something
}
it can be written thus for OR statement
foo==1 || foo==2 ? do something : else do something
it can be written thus for AND statement
foo==1 && foo==2 ? do something : else do something
both will work perfectly
EDITED
The original answer has run a little bit of from the question asked. Below is my edited answer.
To use ternary operator
(foo == 1 || foo == 2) ? doSomething() : doSomethingElse();
For my cleaner approach
{1, 2}.contains(foo) ? doSomething() : doSomethingElse();
ORIGINAL
The cleaner way for me is
if ({1, 2}.contains(foo)) {
//do something
} else {
//do something else
}
Here is an example of the same
Text((managerStatus == "pending")
? "Requested"
: (adminStatus == "confirm")
? "Amount credited"
: "Admin Pending")
Try this:
foo == 1 ? doSomething1 : (foo == 2 ? doSomething1 : doSomething2)
If you have to include multiple conditions then you should use parantheses
Simple Multiple check in one condition
if(in_array($foo, [1,2,'other'])) {
//do something
}
else {
//else do something
}
void main(){
var a,b,c,d;
a = 7;
b = 9;
c = 11;
d = 15;
print((a>b)?((a>c)?((a>d)?a:d):c):(b>c)?((b>d)?b:d):(c>d)?c:d);
}
I need to have a condition with logical operator OR. I try to do in this way but it seem doesn't work :
<div th:if="${(fingerprints.totalPages != 0) or (fingerprints.totalPages != 1)}"
How I suppose to do ? :)
Both or and || work. In this case, your logic is wrong. I think your expression should be:
th:if="${(fingerprints.totalPages != 0) and (fingerprints.totalPages != 1)}"
Your original expression is always true. (Since fingerprints.totalPages is always going to be either != 1 or != 0.
I'm trying to filter an array in swift, it works great when I'm just trying to filter a few things but when I add to the list I get this error:
Expression was too complex to be solved in reasonable time; consider
breaking up the expression into distinct sub-expressions
Here is my code with the above error:
filteredArray = workArray.filter { $0.stateName.localizedCaseInsensitiveContainsString(searchString!) || $0.firstName.localizedCaseInsensitiveContainsString(searchString!) || $0.lastName.localizedCaseInsensitiveContainsString(searchString!) || $0.countyName.localizedCaseInsensitiveContainsString(searchString!) || $0.cityName.localizedCaseInsensitiveContainsString(searchString!) || $0.communityName.localizedCaseInsensitiveContainsString(searchString!) || $0.sectionName.localizedCaseInsensitiveContainsString(searchString!) || $0.notes.localizedCaseInsensitiveContainsString(searchString!) || $0.email1.localizedCaseInsensitiveContainsString(searchString!) || $0.email2.localizedCaseInsensitiveContainsString(searchString!) || $0.email3.localizedCaseInsensitiveContainsString(searchString!) || $0.title.localizedCaseInsensitiveContainsString(searchString!) || $0.jobsiteID.localizedCaseInsensitiveContainsString(searchString!)}
I have tried to split this process up like this
filteredArray = workArray.filter { $0.stateName.localizedCaseInsensitiveContainsString(searchString!) || $0.firstName.localizedCaseInsensitiveContainsString(searchString!) || $0.lastName.localizedCaseInsensitiveContainsString(searchString!) || $0.countyName.localizedCaseInsensitiveContainsString(searchString!) || $0.cityName.localizedCaseInsensitiveContainsString(searchString!) || $0.communityName.localizedCaseInsensitiveContainsString(searchString!) || $0.sectionName.localizedCaseInsensitiveContainsString(searchString!) || $0.notes.localizedCaseInsensitiveContainsString(searchString!) || $0.email1.localizedCaseInsensitiveContainsString(searchString!)}
and
filteredArray.appendContentsOf(workArray.filter { $0.email2.localizedCaseInsensitiveContainsString(searchString!) || $0.email3.localizedCaseInsensitiveContainsString(searchString!) || $0.title.localizedCaseInsensitiveContainsString(searchString!) || $0.jobsiteID.localizedCaseInsensitiveContainsString(searchString!)})
But I am getting duplicate objects in the array.
I could write something else that would then look for and delete duplicate objects but I would rather not. My question is how should I be filtering all this items.
Thank you for all the help
Factor that behemoth of an expression out to a method on your datatype.
extension MyDataThingy {
func anyFieldContains(searchTerm term: String) -> Bool {
let fieldValues = [self.stateName, self.firstName, /* etc. */]
for value in fieldValues {
if value.localizedCaseInsensitiveContainsString(term) {
return true
}
}
return false
}
}
Then:
filteredArray = workArray.filter { $0.anyFieldContains(searchTerm: searchTerm) }
This will fix the timeout error from the type inference engine. It is also more readable, more understandable, and more maintainable.
Extended syntax
Try the extended syntax
workArray.filter { elm -> Bool in
// put your conditions here
}
this way you are helping the compiler to understand that the closure receive an element of the type of your array and returns a Bool value.
I need to create a single event rule for the below anchor tags. I have 2 classes to add or i can use id.
<a id="Message1" class="read">test1</a>
<a id="Message2" class="unread">test2</a>
In my event rule i have added a as selector and then used custom code like below to capture id or class. Both dint work. What is the issue here?
if ( $(this).attr('id').indexof("Message") > 0 ) {return true;} else {return false;}
if ( $(this).attr('class') == "read" || $(this).attr('class') == "unread" ) {return true;} else {return false;}
I am reviewing scripts written by differenct coders and see many statement like:
((patindex('%,'+rtrim(ad.Dept)+',%', #vcP1Input) != 0) .
and I am wondering what the '!' is being used for.
! means not in this case.
So the != means not equal.
It means inequality.
Left side (patindex('%,'+rtrim(ad.Dept)+',%', #vcP1Input) is not equal to right side (0)
!= is the negation of ==
for example
if(obj == null)
{
// do stuff1
}
else
{
// do stuff2
}
is the same like
if(obj != null)
{
// do stuff2
}
else
{
// do stuff1
}
In TSQL, != means not equal to.
Your expression
((PATINDEX('%,' + RTRIM(ad.Dept)+',%', #vcP1Input) != 0)
is true if it can find the the trimmed value of ad.Dept in the string #vcP1Input, that is if PATINDEX returns anything else than 0.