Can a for loop be used to create an 'else if' statement in jquery

Question

if(case) {
  //statement
} else if {
 //statement
}

for() {
 //loop to create more else if statements
}

else {
}

Just curious to know if this should/can be done.

Example usage: If the user is making a selection from a dropdown list with values from 1-50, and there are different conditions to be executed onchange for each of those 50 values; else-if statements are then dynamically created using the for-loop for all those 50 different conditions.

===============================================================

Edit:

Great, thanks everyone. You just helped me save a great deal of time that I otherwise would've wasted trying to get this to work somehow; until eventually realizing it can't be done.

The only reason I tried something like this was because I didn't want to write 50+ else-if statements for each of my dropdown option.

Thank you Jonas W, Shane_IL for your answers.

i think u cannot use, usually if else will appear inside for loop — Donald Wu
– Donald Wu, Commented Jan 2, 2017 at 9:55
There will be better ways of doing things. what is your case scenario of thinking such a bold one? — Jai
– Jai, Commented Jan 2, 2017 at 9:57
Can you give little sample data? Its not straight but there can be ways to validate — Rajesh Dixit
– Rajesh Dixit, Commented Jan 2, 2017 at 10:00

Jonas Wilms · Accepted Answer · 2017-01-02 10:08:19Z

1

May have a look at switches:

switch(input.value){
 case 1:
    alert("value is one");
 break;
 case 2:
   alert("value is two");
 break;
}

Or recursive functions:

function validate(val,start=0){
 if(val==start){
  alert("val is "+start);
 }else{
  validate(val,start+1);
 }
 }

validate(27);//will go trough 26 elses and one if...

Or create an array to resolve:

var resolve=[" one","two","three"];
alert(resolve[input.value]);

edited Jan 2, 2017 at 10:08

answered Jan 2, 2017 at 10:01

Jonas Wilms

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Shane_IL · Accepted Answer · 2017-01-02 10:05:52Z

0

There is no syntax that can do that.

You can create a unique evaluation function for each value, then you can do something like this:

for(let i=0;i < values.length; i++){
  if(values[i].evaluatorFunc()){
    //doSomething
  }
  else{
    doSomethingElse()  
  }
}

function doSomethingElse(){
  //here you can run the same code anytime the loop enters else
}

edited Jan 2, 2017 at 10:05

answered Jan 2, 2017 at 10:03

Shane_IL

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2 Comments

Jonas Wilms Over a year ago

If values is an array i<values is a bit weird

Shane_IL Over a year ago

Doh! .length, i always forget .length

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