We have the following code...
var key,
obj = {
name: 'john',
surname: 'doe'
};
for ( key in obj ) {
if ( obj.hasOwnProperty( key ) ) {
console.log( key + ' exists in obj' );
console.log( key + ': ' + obj[key] );
continue;
}
console.log( key + " doesn't exist in obj" );
}
... and the result of executing it is...
name exists in obj
name: john
surname exists in obj
surname: doe
... but we want to get the following result, can you help us?
name doesn't exist in obj
surname exists in obj
surname: doe
var key,
obj = {
name: 'john',
surname: 'doe'
};
Object.prototype.hasOwnProperty = function (key) {
if(key == 'name'){
return false;
}
return true;
};
for ( key in obj ) {
if ( obj.hasOwnProperty( key ) ) {
console.log( key + ' exists in obj' );
console.log( key + ': ' + obj[key] );
continue;
}
console.log( key + " doesn't exist in obj" );
}
assert(items.length == 3 && items[0] == 'name doesn\'t exist in obj' && items[1] == 'surname exists in obj' && items[2] == 'surname: doe');
var items = [];
var backConsole = console;
var console = {
log: function (str) {
items.push(str);
if(items.length === 3)
{
console = backConsole;
}else{
backConsole.log(str);
}
}
};