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Why does the indexing start with zero in 'C'?
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In C, the name of an array is essentially a pointer [but see the comments], a reference to a memory location, and so the expression array[n] refers to a memory location n elements away from the starting element. This means that the index is used as an offset. The first element ...
Get users by name property using Firebase
...tion where I can get/set data in specific users accounts and I was tempted by Firebase.
8 Answers
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jQuery pitfalls to avoid [closed]
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Being unaware of the performance hit and overusing selectors instead of assigning them to local variables. For example:-
$('#button').click(function() {
$('#label').method();
$('#label').method2();
$('#label').cs...
Testing two JSON objects for equality ignoring child order in Java
I'm looking for a JSON parsing library that supports comparing two JSON objects ignoring child order, specifically for unit testing JSON returning from a web service.
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What is __future__ in Python used for and how/when to use it, and how it works
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With __future__ module's inclusion, you can slowly be accustomed to incompatible changes or to such ones introducing new keywords.
E.g., for using context managers, you had to do from __future__ import with_statement in 2.5, as the with keyword was new and shouldn't be used ...
JavaScript validation for empty input field
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<input name="question"/> I want to call IsEmpty function when submit clicking submit button.
13 Answers
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C++ stl stack/queue 的使用方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
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定义queue 对象的示例代码如下：
queue<int> q1;
queue<double> q2;
queue 的基本操作有：
入队，如例：q.push(x); 将x 接到队列的末端。
出队，如例：q.pop(); 弹出队列的第一个元素，注意，并不会返回被弹出的元素，使用front()等访问...
What is the preferred syntax for initializing a dict: curly brace literals {} or the dict() function
...on coding standards. This may seem like a pointlessly nit-picky question, but I am trying to focus on best-practices as I learn, so I don't have to unlearn any 'bad' habits.
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What does “dereferencing” a pointer mean?
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Reviewing the basic terminology
It's usually good enough - unless you're programming assembly - to envisage a pointer containing a numeric memory address, with 1 referring to the second byte in the process's memory, 2 the third, 3 the fou...
Sleep in JavaScript - delay between actions
Is there a way I can do a sleep in JavaScript before it carries out another action?
11 Answers
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