I have following code Im trying to use the ‘n’ value from v-for and ternary operator to switch style classes. Currently it is not working, how can I achieve that ? Answer showTab is object , maybe you confuse it with props:
Tag: conditional-operator
How do I check & return an error message if an array is undefined?
I am writing a ternary statement that prints out the certification of a movie (IE. PG, R…). I am trying to return an error message that says “No Certification Available For This Movie” if the length of the array is equal to zero and if it is undefined. I managed to print the error message to the console if the
If statement won’t work, but the ternary will. Why?
I was wondering why the const sortingMethod that is commented out doesn’t work, and the sortingMethod that is active does work. The first one is a ‘normal’ if-statement while the other is a ternary operator, if I’m not mistaken. Isn’t it that same thing, but written differently? Answer I think what @deceze means is that you need to evaluate your
Give empty input values a value only when they are empty/null, when a response function is executed in JavaScript
Otherwise, I want their original value. Basic desired outcome: For this example, type a name to see the result. Erase the name and I want it to say “[empty]” instead of the name (in the text below the field). If I type the name again it should show the name again. I am using “span” in a larger program so
react render Logical && vs Ternary operator
In the react render() when the value of x equals 1 both the logical && and ternary operator will display Hello and both are syntactically correct. I always used the && when I don’t want to show the else part of my condition, but I have come across one code base where most of the places they used ternary operator
Variable reassignment with chained booleans or ternary operator [closed]
Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed 2 years ago. Improve this question To clarify: This is purely for experimental purposes, to learn the quirks, odds
Why is the condition in this callback always returns false?
I have a home SPA based on Vue. One of the components is driven by a v-if=”isDisplayed”. This isDisplayed is set by listening to a MQTT topic (see footnote) and new messages received are handled by the following function (I sepcifically used ‘hello’ instead of false to make sure the switch goes there). The topic of interest is display_school_edt. When
checking for null in javascript
I have the above if-else-if chain in the code, trying to see if I can write the same logic in one or two lines. Answer Since you want to distinguish between three types of values, you have to make at least two checks already. The else case will never be hit since either !valid or valid will be true. That
Convert if statements into ternary conditional operators
Apologize if it’s seems simple, I’m stack on this. I want to convert these if statements into ternary condition : I tried this and do not work for me, it only execute directly condition C How to formulate that ? thanks. Answer Though with some magic letters it works. But please DON’T do it. Nested terenary operations are harder to
Alternative to nested ternary operator in JS [closed]
Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 7 months ago. Improve this question I personally love ternary operators, and in my humble opinion, they make complicated expressions very easy to digest. Take this one: