The role of layui.util
layui.util is a set of practical tool functions provided in the layui framework, designed to simplify front-end development tasks and improve code readability and maintainability functionality and reusability.
Specific functions include:
Operation arrays and objects
-
extend(target, source)
: Expand the properties of the source object for the target object -
clone(source, deep)
: Copy the source object deeply or shallowly -
difference(arr1 , arr2)
: Get the difference item between two arrays
Date and time operation
-
extend(target , source)
: Expand the properties of the source object for the target object -
clone(source, deep)
: Deep or shallow copy of the source object -
difference(arr1, arr2)
: Get the difference item between two arrays
Form operation
- ##valid( form, rules)
: Verify whether the form fields comply with the rules
- verify()
: Customize the form validation rules
- serialize(form)
: Serialize form data into key-value pairs
Event operation
- on(element, event, callback)
:Bind event listener
- off(element, event)
:Remove event listener
- bind(callback, context)
: Context of binding callback function
Other practical functions
- ##escape(html)
- : Escape HTML characters
- : Escape HTML characters
- : Generate random numbers within the specified range
// 扩展对象
layui.util.extend(targetObj, sourceObj);
// 复制对象
const clonedObj = layui.util.clone(obj, true);
// 验证表单
layui.util.valid(form, {
username: {
required: true
}
});
// 为元素绑定单击事件
layui.util.on(element, 'click', function() {
// ...
});
By using the practical functions provided in layui.util, developers can easily and efficiently handle various common tasks and simplify the front-end development process.
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