1234567891011121314function foo() { console.log(this);}var obj1 = { name: "obj1", foo: foo,}...

1234567891011121314151617181920function foo() { console.log(this);}var obj1 = { name: "obj1", foo...

1234567function foo() { console.log(this)}foo.call(window); // windowfoo.call({name: "codereasy"
...

1234567891011121314151617// 定义一个函数function foo() { console.log(this);}// 1.调用方式一： 直接调用foo(); // window// 2.调用方式二：将...

1234567891011121314151617function Parent() { this.name = 'parent'}Parent.prototype.getName = function (...

前端防抖（Debounce）详解及应用在前端开发中，用户的操作可能会频繁触发事件，如输入框输入、窗口大小调整、按钮点击等。如果每次事件都立即触发相应的处理逻辑，可能会导致性能问题，甚至让用户体验变差。为了解决这些问题，我们可以使用防抖（Debounc...

1234567891011121314151617181920212223242526272829303132function deepClone(source, clonedMap = new Map()) { if(typeof so...

123456789101112131415161718192021222324252627282930313233343536function deepClone(source) { if(typeof source !== "...

12345678910111213141516171819202122232425262728293031323334const obj = { name: "John", age: 30, address: &#...

123const arr1 = [1,2,3];const arr2 = arr1.slice();console.log(arr2); //[ 1, 2, 3 ] 123const arr1 = [1,2,3];const arr2 = arr1...