What is the best way to put more than 1 ternary conditional class in angular's ngClass directive, where the values are the class-names? Required fields are marked *. Wherecondition: is a boolean expression, which returns true false.expression1: executes if the condition is true.expression2: executes if the condition is false. A Computer Science portal for geeks. It is followed by a question mark (? The following example demonstrates the usage of a conditional ref expression: Use of the conditional operator instead of an if statement might result in more concise code in cases when you need conditionally to compute a value. Our mission: to help people learn to code for free. He have been contributing to various projects over the last 5+ years and working with almost all the so-called 03 tiers(DB, M-Tier, and Client). Let's take the placeholder attribute of input as an example. That being said, all the following [ngClass]es are valid: We can't write an if statement in ngClass, due to the fact that it is a statement. Visit Mozilla Corporations not-for-profit parent, the Mozilla Foundation.Portions of this content are 19982023 by individual mozilla.org contributors. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Why Is PNG file with Drop Shadow in Flutter Web App Grainy? Linear Algebra - Linear transformation question. I have dynamically loading , and want to set specific values, depends on the value from service. Find centralized, trusted content and collaborate around the technologies you use most. By using the Python one-line "if-else" we can replace multiple lines of code with a single line and increase the quality of the code. Step2: modify app.component.ts file. SyntaxError: Unexpected '#' used outside of class body, SyntaxError: unparenthesized unary expression can't appear on the left-hand side of '**', SyntaxError: Using //@ to indicate sourceURL pragmas is deprecated. For example, we have a list of steps, and we need to add status classes based on their boolean status as shown below to change its style. The statement includes the condition, followed by a question mark. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Ask Question Asked 7 years, 8 months ago. We call it the TypeScript conditional operator. The Typescript conditional operator is a Ternary Operator, which takes three operands. Condition is always a Boolean expression. age <= 10 ?