s 6新規方法

<script>
			// 1、  
			const str='111'
			
			// 2、    
			if(true){
				let num=3;	
				console.log(num);
			}
			
			// 3、   
			var name='  ';
			var age=34;
			var sex=" ";
			// var obj="     "+name+",   "+age+" ，  "+sex+" "
			// var obj=`     ${name},   ${age} ,  ${sex} `;
			var obj=`
				<p>     ${name}</p>
				   ${age} ,  ${sex} 
				`;
				
			// 4、  
			var arr={111,222,333,444};
			{a,b}=arr;
			{a,b,,c}=arr;
			console.log(a,b);
			console.log(a,b,c);	// 111,222,444
			//     
			var data={
				name:"  ",
				age:30,
				sex:" ",
				job:"    "
			}
			var {name,job}=data;
			console.log(name,job);	
			
			// 5、    
			var obj={
				name:"  ",
				//01
				fun:function(){
					console.log(name+"first");
				},
				//02
				fun2(){
					console.log("second");
				},
				fun4(){
					setTimeout(()=>{
						console.log(name+"    ");
					})
				}
			}
			obj.fun2();
			//03
			function fun3(){
				
			}
</script>

<script>
			// 1、    
			var arr={111,222,333,444};
			// 01
			for(var i=0;i<arr.length;i++){
				arr[i]=arr[i]+" ";
			}
			
			// 02
			var arr2=[]
			arr.forEach((item,idx)=>{
				console.log(" "+item);
				console.log("  "+idx);
				arr2.push(item);
			})
			
			// 03
			var newArr=arr.map((item)=>{
				return item;
			})
			console.log(newArr);
			
			//       
			// 01
			arr.concat(arr2);
			console.log(arr);
			
			// 02     
			var arr3=[...arr,...arr2];
			console.log(arr3);
</script>