Angular 4: Combining values instead of summing them up

I recently encountered a situation while working on an Angular 4 application. I attempted to add 1 to the parameter value of a method, but ran into some unexpected results.

For example, when the method receives 1 as the parameter value, I wanted to add the parameter value + 1 inside the method. However, instead of returning 2, it returns 11.

addCount(mCount){
   mCount += 1;
   console.log(mCount);
}

If anyone has any insights or solutions to this issue, it would be greatly appreciated. Thank you!

angulartypescript

Answer №1

If your value is stored as a string, simply convert it to a number before performing addition. Utilize the + operator for this conversion process.

incrementCount(count){
   count = +count + 1;
   console.log(count);
}

Answer №2

Make sure to use ParseInt when converting to a number, as the value may be treated as a string and concatenated instead.

mCount = parseInt(mCount) + 1

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