Tutorial by Topics: h

pickle.dump(obj, file, protocol=None, *, fix_imports=True) pickle.load(file, *, fix_imports=True, encoding="ASCII", errors="strict") ParameterDetailsobjpickled representation of obj to the open file object fileprotocolan integer, tells the pickler to use the give...

mongodb://[username:password@]host1[:port1][,host2[:port2],...[,hostN[:portN]]][/[database][?options]] ParameterDetailhostXOptional. You can specify as many hosts as necessary. You would specify multiple hosts, for example, for connections to replica sets.:portXOptional. The default value is...

When you need to handle time information for a worldwide user base in MySQL, use the TIMESTAMP data type in your tables. For each user, store a user-preference timezone column. VARCHAR(64) is a good data type for that column. When a user registers to use your system, ask for the time zone value. ...

You need to be at MySQL version 5.6.4 or later to declare columns with fractional-second time datatypes. For example, DATETIME(3) will give you millisecond resolution in your timestamps, and TIMESTAMP(6) will give you microsecond resolution on a *nix-style timestamp. Read this: http://dev.mysql....

The new chrome v8 engine is partially ES7 compliant. So if we add "use strict"; to top of our file (typescript do that when transpiles typescript) we have to make sure that any functions that are on the global scope are actually assigned to the global scope. so we should use self.funct...

LENGTH variable(s) <$>length; ParameterDetailsvariable(s)variable(s) you wish to assign a length to$optional parameter that specifies if your variable is a character variablelengthinteger that specifies the length of the variable

For debugging and troubleshooting in Codeigniter, you can use Profiler, part of Output library