Using the ternary 😕 operator [spec]. var hasName = (name === ‘true’) ? ‘Y’ :’N’; The ternary operator lets us write shorthand if..else statements exactly like you want. It looks like: (name === ‘true’) – our condition ? – the ternary operator itself ‘Y’ – the result if the condition evaluates to true ‘N’ – … Read more
My initial reaction was #ifdef, of course, but I think #if actually has some significant advantages for this – here’s why: First, you can use DEBUG_ENABLED in preprocessor and compiled tests. Example – Often, I want longer timeouts when debug is enabled, so using #if, I can write this DoSomethingSlowWithTimeout(DEBUG_ENABLED? 5000 : 1000); … instead … Read more
= is assignment operator, == is comparison operator. But assignment operator x = y not only assigns value from y to variable x, but it also returns that value. Thanks to that we can write code like x = y = z = 1; //equivalent of: x = (y = (z = 1)); (although it … Read more
You can choose: if [[ $? -ne 0 ]]; then # -ne: not equal if ! [[ $? -eq 0 ]]; then # -eq: equal if [[ ! $? -eq 0 ]]; then ! inverts the return of the following expression, respectively.
Values from inputs are retrieved as strings, you need to convert it to number. Try this: value1 = +document.First_num.value; value2 = +document.last_num.value; Also, try to be consistent when naming your input, why caps for one and lowercase for the other?
let valuesArray = [“ab”,”bc”,”cd”] valuesArray.contains(str) // -> Bool
Okay, since I could use the practice I created an example project to show what vikingosegundo and I mean. Here’s the gist of it: For this example I kept all relevant code except the adding and removing of shapes in a GHShapeDemoView. I used structs to define the shapes, but treat them as one “unit” … Read more
You can do something similar when looking for a char in a String, by using the indexOf method to search the string. if (“aeiouAEIOU”.indexOf(aChar) != -1)
You need to break; after each statement in a case, otherwise execution flows down (all cases below the one you want will also get called), so you’ll always get the last case. switch(position) { case 0: textView.setText(R.string.zero); break; case 1: textView.setText(R.string.one); break; case 2: textView.setText(R.string.two); break; case 3: textView.setText(R.string.three); break; case 4: textView.setText(R.string.four); break; } … Read more