Tag: conditional-operator

Vue v-for with range and ternary class operator

conditional-operator javascript v-for vue.js vuejs2

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:

How do I check & return an error message if an array is undefined?

arrays conditional-operator javascript

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…

If statement won’t work, but the ternary will. Why?

conditional-operator if-statement javascript

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? …

Give empty input values a value only when they are empty/null, when a response function is executed in JavaScript

conditional-operator html input javascript null

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 …

react render Logical && vs Ternary operator

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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 t…

Variable reassignment with chained booleans or ternary operator [closed]

boolean-expression conditional-operator javascript

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 cl…

Why is the condition in this callback always returns false?

conditional-operator conditional-statements if-statement javascript

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 sw…

checking for null in javascript

conditional-operator javascript null

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

conditional-operator javascript

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. …

Alternative to nested ternary operator in JS [closed]

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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 …