javascript 數組

var man = {name: "gary" , age:"30"};
man.name ->gary
delete man.age ->undefined


var man={};
man.name = peter;
mane; ->{name:peter}


var man = {"peter lin" : "man"  , 5: 10}
man["5"]; mane[2+3];  ->10
delete man["peter lin"]

var varname = "length";
var text="haha"
text[varname];   ->4

var haha ={};
haha.name = peter
"name" in haha -> true
"name" in haha.name ->true

function haha(value){
    var result = [];
    for(var i=0 ;i <=value;i++)
          result[i] = i;
    return result;
}
haha(4); ->[0,1,2,3,4]


var array=[];
array.push("haha");
array.push("make");
array.push("money");
array; ->["haha" ,"make","money"]
array.join[" "]; -> "haha make money"
array.pop();-> "money"
array; ->["haha","make"]

var word="haha make money"
word.split(" ");
->["haha","make","money"]


擷取字串
haha.slice(0,4)

range(1,10) ;