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function myNew(Fuc,args) {
window.obj = {};
Object.setPrototypeOf(window.obj,Fuc.prototype);
const res = Fuc.call(window.obj,args);
return res instanceof Object ? res : window.obj;
}
function Voyz() {
this.name = 'voyz';
this.gender = 'male';
}
Array.myIsArray = function (o) {
return o instanceof Array;
}
Object.myCreate = (obj)=>{
const F = function () {};
F.prototype = obj;
return new F();
}
Array.prototype.myReduce = function (callback,init) {
let res = init ? init : this[0];
for(let i=(init ? 0 : 1);i<this.length;i++){
let _this = this;
res = callback(res,this[i],i,_this);
}
return res;
}
Function.prototype.myCall = function(obj) {
const context = obj || window;
context.fn = this;
const args = [...arguments].slice(1);
const res = context.fn(...args);
delete context.fn;
return res;
}
Function.prototype.myApply = function (context) {
context = context || window;
context.fn = this;
let res;
if(arguments[1]){
res = context.fn(...arguments[1])
}else{
res = context.fn();
}
delete context.fn;
return res;
}
function createCurry(func,props) {
let args = props || [],
target_len = func.length,
_this = this;
return function () {
let _args = args.concat([...arguments]);
if(_args.length<target_len){
return createCurry.call(_this,func,_args);
}
return func.apply(_this,_args);
}
}
function add(a,b,c,d) {
return a+b+c+d
}
const debounce = (func,wait) => {
let timer;
return function () {
let context = this,
args = [...arguments];
if(timer) clearTimeout(timer);
timer = setTimeout(() => {
func.apply(context,args)
timer = null
}, wait);
}
}
const throttle = (func,delay) => {
let timer;
return function () {
let context = this,
args = arguments;
if(timer) return;
timer = setTimeout(() => {
func.apply(context,args)
timer = null
}, delay);
}
}
const _onchange = (params)=>{
if(params.nativeEvent.data){
console.log(params.nativeEvent.data);
}
}
function deepClone(target) {
if(typeof target === 'object'){
let res = Array.isArray(target) ? [] : {};
for(const key in target){
res[key] = deepClone(target[key])
}
return res;
}else{
return target
}
}
function myInstanceof(L,R) {
const target = R.prototype;
while(true){
if(L === null) return false;
if(L === target) return true;
L = L.__proto__;
}
}
function myExtends(C,P) {
const F = function () {};
F.prototype = P.prototype;
C.prototype = new F();
C.prototype.constructor = C;
C.super = P.prototype;
}
** flat **
Array.prototype.myFlat = function(isFirstLevel=true) {
if(isFirstLevel && !Array.isArray(this)){
throw `${this}.flat is not a function`;
}else{
let res = []
this.forEach(item=>{
if(Array.isArray(item)){
res = res.concat(item.myFlat(false))
}else{
res.push(item)
}
})
return res;
}
}
Array.prototype.theFlat = function (number=1) {
if(number>0 && !this instanceof Array){
throw `${this}.flat is not a function`;
}else{
let res = [];
this.forEach(item=>{
if(item instanceof Array && number === 0){
res = res.concat(item.theFlat(--number))
}else{
res.push(item)
}
})
return res;
}
}
Array.prototype.myMap = function(callback,_this) {
const res = [];
for(let i=0;i<this.length;i++){
res.push(callback.call(_this,this[i],i,this))
}
return res;
};
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