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MySQL SELECT only not null values

... ? – Istiaque Ahmed Nov 9 '17 at 11:32 For not-so-expert people, can you explain the last solution ? Does the idx rom...
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CSS table layout: why does table-row not accept a margin?

...e; border-spacing: 15px; } .row { display: table-row; } .home_1 { width: 64px; height: 64px; padding-right: 20px; margin-right: 10px; display: table-cell; } .home_2 { width: 350px; height: 64px; padding: 0px; vertical-align: middle; font-size: 150%; ...
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How can I swap positions of two open files (in splits) in vim?

... Starting with this: ____________________ | one | two | | | | | |______| | | three| | | | |___________|______| Make 'three' the active window, then issue the command ctrl+w J. This moves ...
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Forced naming of parameters in Python

...ition to other good answers for Python 2, please consider the following: __named_only_start = object() def info(param1,param2,param3,_p=__named_only_start,spacing=10,collapse=1): if _p is not __named_only_start: raise TypeError("info() takes at most 3 positional arguments") return...
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How are parameters sent in an HTTP POST request?

... answered Jan 27 '13 at 19:32 GuffaGuffa 618k9090 gold badges651651 silver badges926926 bronze badges ...
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Should I be using object literals or constructor functions?

...on () { return this.x + this.y + this.z; } }; var ObjCon = function(_x, _y, _z) { var x = _x; // private var y = _y; // private this.z = _z; // public this.add = function () { return x + y + this.z; // note x, y doesn't need this. }; }; // use the objects: objLit.x = 3; objLit...
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Better naming in Tuple classes than “Item1”, “Item2”

...Class? – deathrace May 28 '15 at 13:32 5 The slight advantage I see of this is that it automatica...
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Loop through an array of strings in Bash?

...example below it is changed to a comma List="Item 1,Item 2,Item 3" Backup_of_internal_field_separator=$IFS IFS=, for item in $List; do echo $item done IFS=$Backup_of_internal_field_separator Output: Item 1 Item 2 Item 3 If need to number them: ` this is called a back tick. Put t...
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What is the difference between std::array and std::vector? When do you use one over other? [duplicat

... Luc DantonLuc Danton 32.6k55 gold badges6363 silver badges109109 bronze badges add...
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What is the instanceof operator in JavaScript?

...there. Every object in JavaScript has a prototype, accessible through the __proto__ property. Functions also have a prototype property, which is the initial __proto__ for any objects created by them. When a function is created, it is given a unique object for prototype. The instanceof operator uses...