Hey guys am new to javasript app development..I have learned about objects and arrays and i got that values in the arrays can be called by index but in objects it cant be possible.
So i have tried the code
name = ['dfsdf','sfdsf']
var b = [[name,'DFDSF']];
console.log(b[0].name);
It gives me undefined Instead of returning the array name.
I just want to know how can i access like b[index].nestedarrayname.
It would be really helpful if you provide some example codes ..Thanks
If you want it to be an "associative" array, you would need to make the array element an object:
var b = [{name:'DFDSF'}];
console.log(b[0].name);
as far as I undrestant , you want to cal name , which is an array itself , so :
name = ['dfsdf','sfdsf']
var b = [[name,'DFDSF']];
you can do :
1 - console.log(b[0][0]); // this will output an array which contains ['dfsdf','sfdsf']
OR
you must change your structure to this :
name = ['dfsdf','sfdsf']
var b = [
{"name": name} // the right one name, is your actual name array , so this is b[0]
,
'DSDSF' // this is b[1]
];
now you can call:
console.log(b[0].name);
NOTE :
in javascript , you can call an element iside an array by its index , and you can call a property inside an object in two ways :
1 - Using .(dot) like : object.property
2 - Using [''] like : object['property']
When you attempt to access a property via the . operator, JavaScript expects the object (an array in this case) to have an actual property with that name. Arrays have integer indexes in JavaScript, so to access it as-is you'll want:
console.log(b[0][0]);
However, if you do want an associative array, you can create the sub-indexes as objects instead (think JSON formatting):
var b = [{'name': name}, 'DFDSF'];
console.log(b[0].name); // b[0] is the object {'name': name}
// b[1] is the string 'DFDSF'
bwill look like[[['dfsdf','sfdsf'], 'DFDSF']]. Values don't contain information about variable names.