[Solved] Why do Parameterized queries allow for moving user data out of string to be interpreted?

Compiled queries use special syntax that the database understands. They usually add placeholders for parameters such as in: select * from applicant where name = ? select * from applicant where name = :name The exact syntax depends on the specific technology: JDBC, ODBC, etc. Now, once those queries are sent to the database (without … Read more

[Solved] Why does the top code work and the bottom code not in c++ for dynamic matrix allocation? [closed]

Remarks: You do not free allocated memory by using delete[]. That’s a very bad practice. You always should remember to free memory you allocated. It is very, very uncomfortable to choose jagged arrays (arrays of arrays) for long term use. A lot easier solution is to allocate a single array: double * phi = new … Read more

[Solved] Converting Date to proper format when the Value obtained from the Db is in format 2012-07-13 00:00:00.0 [duplicate]

Use this one NSString *dateStr=@”2012-07-13 00:00:00.0″; NSDateFormatter *df = [[NSDateFormatter alloc] init]; [df setDateFormat:@”yyyy-MM-dd HH:mm:ss.S”]; NSDate *date = [df dateFromString: dateStr]; [df setDateFormat:@”MM/dd/yyyy”]; NSString *convertedString = [df stringFromDate:date]; NSLog(@”Your String : %@”,convertedString); Output: Your String : 07/13/2012 6 solved Converting Date to proper format when the Value obtained from the Db is in format 2012-07-13 … Read more

[Solved] Makefile issue (Undefined symbols for architecture x86_64: “_main”, referenced from: implicit entry/start for main executable) [duplicate]

There are two separate errors. First, you forgot to add main.cpp to your makefile. Second, your main.cpp doesn’t contain a global function named main. A class member function named main doesn’t qualify. You need a function named main in the global namespace with external linkage. solved Makefile issue (Undefined symbols for architecture x86_64: “_main”, referenced … Read more

[Solved] How to make an inApp “Chat” [closed]

I have 0 experience on chat programming but I’ll still try to answer your question. You will need a server to manage the messaging between clients. Then you could follow two routes: Having the client fetch the server for new messages every X seconds (the easiest option if you ask me) Having a socket connection … Read more

[Solved] What’s the best way to add/remove dynamically Form Array item?

You should call push method on formArray control. Since you are pushing new FormGroup inside normal array underlaying FormGroup is not get updated. addFarina() { let farineForm = this.form.value.ingredienti.farine; let farineFormControls = this.form.get(‘ingredienti’).get(‘farine’) as FormArray; if (farineForm.length < 4) { const farina = this.fb.group({ quantita: [null, [Validators.required]], nome: [”] }) farineFormControls.push(farina); } console.log(this.form.get(‘ingredienti’).value); } Now … Read more

[Solved] Print from List Python

a bit unclear, are you looking for this? In [41]: a = [{ ‘a’:’z’, ‘b’:’x’, ‘c’:’w’, ‘d’:’v’}, { ‘a’:’f’, ‘b’:’g’, ‘c’:’h’, ‘d’:’i’}] In [42]: a[0].get(‘a’) Out[42]: ‘z’ …or this? In [50]: a[0].values() Out[50]: [‘z’, ‘w’, ‘x’, ‘v’] …or using your provided data: In [47]: data = {‘style’: ‘-‘, ‘subCat’: ‘-‘, ‘name’: ‘Eurodollar Futures’, ‘oi’: ‘9,774,883’, … Read more

[Solved] Merge multi strings and create new string with set max parameters value [closed]

As a follow up to my comment, this is an example on how you can use the dictionary to get a list of unique keys and add the highest value to it: s = “projects@dnProjectsPatterning=0|dnProjectsSendReport=1#workplans@dnWorkplansAdd=0|dnWorkplansGrouping=1*projects@dnProjectsPatterning=1|dnProjectsSendReport=3#workplans@dnWorkplansAdd=1|dnWorkplansGrouping=0*projects@dnProjectsPatterning=5|dnProjectsSendReport=1#workplans@dnWorkplansAdd=0|dnWorkplansGrouping=2” Set dict = CreateObject(“Scripting.Dictionary”) Set re = New RegExp re.Global = True re.Pattern = “(\w+)=(\d+)” Set matches = re.Execute(s) for … Read more

[Solved] How to make an object into text in js

Make some kind of lookup function var lookup = (function (o) { return function lookup() { var i, e = o, s=””; for (i = 0; i < arguments.length; ++i) { s += “https://stackoverflow.com/” + arguments[i]; if (!e.hasOwnProperty(arguments[i])) throw “PathNotFoundError: ” + s; e = e[arguments[i]]; } return {path: s, value: e}; } }(obj)); And … Read more

[Solved] javascript using or operator to iterate over list of strings [duplicate]

Unfortunately, that’s not how the || operator works. You’d have to write: fileheader[j] !== ‘GENE_NAME’ || fileheader[j] !== ‘logCPM’ // …etc The other option is creating an array and using indexOf: if ([‘GENE_NAME’, ‘logCPM’, ‘logFC’, ‘FOR’, ‘PValue’].indexOf(j) < 0) { } If you’re only worried about newer browsers, you may also be able to get … Read more

[Solved] Unix Command | ps [closed]

Copied from man ps: -u userlist Select by effective user ID (EUID) or name. This selects the processes whose effective user name or ID is in userlist. The effective user ID describes the user whose file access permissions are used by the process (see geteuid(2)). Identical to U and –user. Meaning: it prints all the … Read more

[Solved] How do I convert highly formatted textual table data into HTML? [closed]

Something like this should work. Example is a text file called my_data.txt which contains the following which is literally based on your example: \———\————-\————-\ | Username| IP | Connected | \———\————-\————-\ | test | 127.0.0.1 | Yes | | atest | 192.168.2.1 | No | | aaa | 1.2.3.4 | Yes | \———\————-\————-\ Here is … Read more

[Solved] How to create dynamic rowspan in table in laravel

I would do it as so: In the controller, select the customers eager loading the vehicles. $customers = Customer::with(‘vehicles’)->get(); return view(‘customers’)->with(‘customers’, $customers); In the view: <table> @foreach($customers as $index => $customer) <tr> <td rowspan=”$customer->vehicles->count()”> {{ $index+1 }} </td> <td rowspan=”$customer->vehicles->count()”> {{ $customer->fullName }} </td> <td rowspan=”$customer->vehicles->count()”> {{ $customer->phone }} </td> <td> {{$customer->vehicles[0]->licensePlate }} </td> <td> … Read more