varobjA = {"name": "colin", "car": "suzuki"};varobjB = {"name": "james", "age": 17};varobjC = {"pet": "dog"};//Lodash_.assign(objA, objB, objC)//{"name": "james", "car": "suzuki", "age": 17, "pet": "dog"} 7) Removing properties from object //Naive meth...
JavaScript 没有直接提供深拷贝的函数,但我们可以用其他函数来模拟,比如JSON.parse(JSON.stringify(objectToClone)),但这种方法要求对象中的属性值不能是函数。Lodash 中的_.cloneDeep函数封装了深拷贝的逻辑,用起来更加简洁。 5. 随机数 // Naive utility methodfunctiongetRandomNumber(min, max){returnMath.floor(...
JavaScript 没有直接提供深拷贝的函数,但我们可以用其他函数来模拟,比如JSON.parse(JSON.stringify(objectToClone)),但这种方法要求对象中的属性值不能是函数。Lodash 中的_.cloneDeep函数封装了深拷贝的逻辑,用起来更加简洁。 5. 随机数 // Naive utility methodfunction getRandomNumber(min, max){ return Math.fl...
if(typeofObject.create!=="function"){Object.create=function(proto,propertiesObject){if(typeofproto!=='object'&&typeofproto!=='function'){thrownewTypeError('Object prototype may only be an Object: '+proto);}elseif(proto===null){thrownewError("This browser's implementation of Object.create i...
// Naive method: Returning a new object with selected properties Object.prototype.pick = function(arr) { var _this = this; var obj = {}; arr.forEach(function(key){ obj[key] = _this[key]; }); return obj; }; var objA = {"name": "colin", "car": "suzuki", "age": 17}; ...
function object() {} return function(proto) { // 如果传入的参数不是object也不是function 是null // 则返回空对象。 if (!isObject(proto)) { return {}; } // 如果支持Object.create方法,则返回 Object.create if (objectCreate) { // Object.create ...
4) Deep-cloning Javascript object 5) Get Random Number between a range Additional option for _.random 6) Extending object Extending multiple objects 7) Removing properties from object More use-cases 8) Select properties from another object to form new object 9) Selecting a random it...
* 复制属性,从soure复制属性到object * @private * @param {Object} source The object to copy properties from. 源对象 * @param {Array} props The property identifiers to copy. 被copy的 对象属性标识符,是个数组 * @param {Object} [object={}] The object to copy properties to. 目标对象 ...
In this example, the pick function extracts the username, email, and age properties from the user object. The console log will output: pickedUser: { username: 'johndoe', email: 'john.doe@example.com', age: 30 } Uniq example Imagine you’re running a blog where users can add tags to...
NOTE:Version 3.x will only work with objects created by the Object constructor. You may need to do something likeconst result = humps({ ...SomeOtherClass })to get humps to process your stuff. Function properties are now kept and not converted to{}. Some might say this is abugand othe...