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Long-held, incorrect programming assumptions [closed]
I am doing some research into common errors and poor assumptions made by junior (and perhaps senior) software engineers.
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Incompatible implicit declaration of built-in function ‘malloc’
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after including <stdlib.h> the warning was replaced by an error error: conflicting types for 'malloc'
– Christos Karapapas
Nov 5 '18 at 20:17
add a comm...
What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon
...e distinguishable from phone numbers, either with a separator character or by storing them in a different column.
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jQuery posting JSON
... an object as settings.data jQuery will convert it to query parameters and by default send with the data type application/x-www-form-urlencoded; charset=UTF-8, probably not what you want
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Determine if an object property is ko.observable
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Thank you. Do you by chance know how to tell if an observable is computed? I can determine if an observable is an observable array via $.isArray(vm[key]()), but do you know how to differentiate observables from a ko.computed??
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font-style: italic vs oblique in CSS
... a certain number of degrees (8-12 degrees, usually). An italic is created by the type designer with specific characters (notably lowercase a) drawn differently to create a more calligraphic, as well as slanted version.
Some type foundries have arbitrarily created obliques that aren't necessarily a...
Why JSF saves the state of UI components on server?
...ssfully process the whole JSF lifecycle based on the information provided by the original JSF component tree when the form has been submitted back to the server. The component tree provides information about the request parameter names, the necessary converters/validators, the bound managed bean pr...
Does MySQL ignore null values on unique constraints?
...swered Sep 14 '10 at 19:34
Mark ByersMark Byers
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Returning redirect as response to XHR request
...2 response plus a Location: header) the redirect is automatically followed by the browser. The response to the second request (assuming it also isn't another redirect) is what is exposed to your program.
In fact, you don't have the ability to detect whether a 302 response has occurred. If the 302 r...
In a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?
...orm field using the disabled HTML attribute so that it won’t be editable by users. Even if a user tampers with the field’s value submitted to the server, it will be ignored in favor of the value from the form’s initial data.
With Django 1.8 and earlier, to disable entry on the widget and pre...