{"id":23425,"date":"2024-03-16T01:24:27","date_gmt":"2024-03-16T01:24:27","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-ng-class-in-angular\/"},"modified":"2024-03-22T01:14:27","modified_gmt":"2024-03-22T01:14:27","slug":"what-is-the-usage-of-ng-class-in-angular","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-ng-class-in-angular\/","title":{"rendered":"What is the usage of ng-class in Angular?"},"content":{"rendered":"

In Angular, the ng-class directive is used to dynamically set a element’s class based on conditions. It can accept an object, an array, a string, or a boolean value as a parameter.<\/p>\n

    \n
  1. Object syntax: Using object syntax, determine which classes should be added or removed based on the key-value pairs of the object. For example:<\/li>\n
  2. The text within the div will have different styles based on the isActive and isHighlighted variables.<\/li>\n
  3. In the given example, if isActive is true, then add the class name “active”; if isHighlighted is true, then add the class name “highlight”.<\/li>\n
  4. Array syntax: By using array syntax, it is possible to dynamically add or remove multiple classes when a condition is met. For example:<\/li>\n
  5. \n
    Some Text<\/div>\n<\/li>\n
  6. In the example above, if both activeClass and errorClass are string variables with the values “active” and “error”, then both classes will be added.<\/li>\n
  7. String syntax: With the use of string syntax, you can either set a static class name or dynamically set a class name based on the result of an expression. For example:<\/li>\n
  8. The text inside the div will be displayed as “Some Text” based on whether isActive is true or false, with the class ‘active’ or ‘inactive’ applied accordingly.<\/li>\n
  9. In the example above, add the class “active” if isActive is true, otherwise add the class “inactive”.<\/li>\n
  10. Boolean syntax: By using boolean syntax, you can dynamically add or remove a fixed class based on conditions. For example:<\/li>\n
  11. A piece of text inside a\n
    element will be styled as “active” if the isActive variable is true.<\/li>\n
  12. In the example above, if isActive is true, then add the class name “active”.<\/li>\n<\/ol>\n

    ng-class also supports adding or removing multiple classes when conditions are met, or using expressions to dynamically set class names. This provides a flexible way to dynamically change the style of elements based on the application’s state.<\/p>\n","protected":false},"excerpt":{"rendered":"

    In Angular, the ng-class directive is used to dynamically set a element’s class based on conditions. It can accept an object, an array, a string, or a boolean value as a parameter. Object syntax: Using object syntax, determine which classes should be added or removed based on the key-value pairs of the object. For example: […]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-23425","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nWhat is the usage of ng-class in Angular? - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-ng-class-in-angular\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the usage of ng-class in Angular?\" \/>\n<meta property=\"og:description\" content=\"In Angular, the ng-class directive is used to dynamically set a element’s class based on conditions. It can accept an object, an array, a string, or a boolean value as a parameter. Object syntax: Using object syntax, determine which classes should be added or removed based on the key-value pairs of the object. 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