Recent questions tagged what

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what is "stat information" in a git index?

In git documentation (like git-checkout-index http://linux.die.net/man/1/git-checkout-index ), there are ... this mysterious "stat information"? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is setTimeOut() function in javascript?

Can i ask what the function of setTimeOut method in javascript?As below: function startTime() { var today=new Date(); ... ('startTime()',500); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what exactly document-ready means in jquery

Let us say I have a HTML page that contains a javascript file: The base.js is like this: $(document). ... the bottom of the javascript file. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what xpath to select CDATA content when some childs exist

Let's say I have an XML that looks like this: <a> <b> <![CDATA[some text]]> <c>xxx</c> <d>yyy</d> ... I'm using "a/b/text()" it returns nothing See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what does transaction mean in reference with neo4j database

I got a bit confuse with term transaction. Suppose in transaction A we have two commands C1 and C2 ... their completion. thanks Amit Aggarwal See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is the diffrence between truncate and delete in sql server?

Can anybody provide me the list of all the differences between truncate and delete in SQL server? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is the purpose of "(void) ( { CODE } )" in c?

In a generated piece of c code I found something like this (edited): #include <stdio.h> int main() { (void ... So, what does this construct do? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is the standard number of parameters that a java method should have?

I am writing a program that checks the number of parameters of a methods and prints out a warning message (its ... me in the right direction? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is the meaning of "let x = x in x" and "data Float#" in GHC.Prim in Haskell

I looked at the module of GHC.Prim and found that it seems that all datas in GHC.Prim are defined as data ... could please explain that to me. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is logic behind this java code

I came across below java line and puzzled about its output. Can you please explain me logic behind this code System. ... ) -1); Output: 65535 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what does `...` do in matlab?

I am new to Matlab but I thought ... is used for expressing array. Following lines of code, however, proved that ... .. GROUP(ID).SetNumber,... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what determines default branch when cloning from git bare repository

I'm trying to change the default branch when cloning from a git bare repo using git 1.8.3.1 from yum ... else might this info be stored? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is wrong with my factorial code in python

I have the following code for calculating the factorial of a number in python. but I couldnt understand why I ... return result factorial(5) 1 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is side-cast or cross-cast in Dynamic_cast in C++

What is side-cast/cross-cast in Dynamic_cast in C++. Can someone explain with an example? #include <iostream> using ... So, what is side-cast? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what happens if php.ini is missing?

What happens if php.ini is missing? Does PHP load with a default configuration? In phpinfo(), it says the ... Can anybody confirm this for me? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what difference between execute a map-reduce job using hadoop and java command

Find many option for run a map-reduce program. Can any one explain difference between theses below commands. And ... -jar MyMapReduce.jar [args] See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is a projection in LINQ, as in .Select()

I typically do mobile app development, which doesn't always have .Select. However, I've seen this used a bit, ... confused by what it was doing. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what are the changes in mysql 8 result rowset case?

when running SELECT maxlen FROM `information_schema`.`CHARACTER_SETS`; mysql 5.7 and mysql 8 produce different results ... result rowset case ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is difference between action hook and filter hook in wordpress?

I read the action hook is use for call the functions and filter hook is use for filtering the content before ... will better to understand more. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is the difference between `/` and `` in php

I am trying to understand examples in PSR-0, but to no avail. I know that is directory separator (at least ... between them and found no result. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what exactly document-ready means in jquery

Let us say I have a HTML page that contains a javascript file: The base.js is like this: $(document). ... the bottom of the javascript file. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what do "_" and "in" mean in Swift programming language?

I found some code written in Swift on github, And get a little confused about this line var done: (NSError?, ... line? Thank you very much! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is the best way to check variable type in javascript

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is the "::" notation in php used for?

I am looking through some php code and I see this "::" notation that i have no idea what it means... ... JFactory::getDBO(); thanks in advance See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is CakePHP model alias used for?

In user model: var $hasMany = array( 'Photo' => array( 'className' => 'Photo', 'foreignKey' => ' ... alias in model. Appreciate your help! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what exactly does "archive artifacts" step do in Jenkins?

I have a Jenkins master server plus multiple slave machines that get created and destroyed all the time. I could ... , will they survive? etc See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what is the best way to do keep alive socket checking in .NET?

I am looking for a way to do a keep alive check in .NET. The scenario is for both UDP and TCP. ... described on the other side failing ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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what can cause node.js to print Killed and exit?

I have a Node.js app that loads some data from Mysql into Redis when the app starts. It has been working ... in the Mysql driver or elsewhere? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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