Vue.js is a progressive JavaScript framework that has gained immense popularity for its simplicity and flexibility in building user interfaces. With its elegant design and ease of integration into projects, Vue.js allows developers to create interactive and dynamic web applications. Vue.js follows a component-based architecture, making it easy to develop and maintain complex applications. Whether you're building single-page applications (SPAs), progressive web apps (PWAs), or incorporating Vue.js into existing projects, it empowers you to craft responsive and feature-rich user experiences with ease and efficiency.
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Practice Test
121. What is the primary purpose of Vue custom directives?
A. To define custom event listeners
B. To format data in templates
C. To manage routing
D. To create Vue components
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Answer: To define custom event listeners
122. How do you define a custom directive in Vue?
A. Using the v-custom directive
B. Using the v-directive directive
C. Using the Vue.directive() method
D. Using the @custom directive
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Answer: Using the Vue.directive() method
123. In Vue, what is the main benefit of using custom directives?
A. They allow you to define custom behavior on elements
B. They simplify routing
C. They automatically format data
D. They create Vue components
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Answer: They allow you to define custom behavior on elements
124. What is the primary role of the bind hook in a Vue custom directive?
A. To define custom behavior when the directive is bound to an element
B. To format data in templates
C. To manage routing
D. To create Vue components
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Answer: To define custom behavior when the directive is bound to an element
125. How can you pass arguments to a custom directive in Vue?
A. By including them in the directive's name
B. By using the v-args directive
C. By defining a computed property that passes arguments
D. By using the v-bind directive
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Answer: By including them in the directive's name
126. What is the purpose of the update hook in a Vue custom directive?
A. To update the element's value when its binding value changes
B. To format data in templates
C. To manage routing
D. To create Vue components
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Answer: To update the element's value when its binding value changes
127. How do you use a custom directive in a Vue template?
A. By wrapping the directive in curly braces
B. By using the v- prefix followed by the directive name
C. By using the @ symbol followed by the directive name
D. By defining a computed property that applies the directive
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Answer: By using the v- prefix followed by the directive name
128. In Vue, what is the syntax for using a custom directive in a template expression?
A. {{ expression | customDirective(arg) }}
B. {{ expression.customDirective(arg) }}
C. {{ customDirective(expression, arg) }}
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Answer: {{ expression | customDirective(arg) }}
129. What is the primary purpose of Vue custom filters?
A. To define custom behavior on elements
B. To format data in templates
C. To manage routing
D. To create Vue components
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Answer: To format data in templates
130. How do you apply a custom filter to an expression in a Vue template?
A. By using the v- prefix followed by the filter name
B. By using the v-custom followed by the filter name
C. By using the @ symbol followed by the filter name
D. By using the | symbol followed by the filter name
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Answer: By using the | symbol followed by the filter name
