when a statement has multiple conditions

I have a situation where I need to verify three conditions:

sheet_exists = 1
recalc = 1 
qty_total and new_qty_total are not equal

Everything works fine when I only use the first two arguments in the if statement:

if(sheet_exists === 1 && recalc === 'yes'){
   //do something
}

However, when I attempt to include the third argument, the if statement fails to execute. I've attempted the following solutions:

if((sheet_exists === 1) && (recalc === 'yes') && (qty_total !== new_qty_total)){
   //do something
}

As well as:

if(sheet_exists === 1 && recalc === 'yes' && (qty_total !== new_qty_total)){
    //do something
}

And:

if(sheet_exists === 1 && recalc === 'yes' && qty_total !== new_qty_total){
    //do something
 }

I'm puzzled as to why my code isn't working as expected. Where could I be making a mistake?

Answer №1

When evaluating the three conditions, if you find that the first two are satisfactory but not the last one, it indicates that the issue lies in the final condition.

It is crucial to note that qty_total !== new_qty_total will be true only when there is a difference in either the value or type of qty_total and new_qty_total.

For instance, if one variable is an integer 100 while the other is a string '100', the condition will return true because they differ in data type. However, if both variables are integers, the condition will evaluate as false since neither the value nor the type differs.

To ensure accurate comparison results, ensure that both variables share the same data type.

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