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How to read and write into file using JavaScript?

Can anybody give some sample code to read and write a file using JavaScript? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - IPython Notebook locale error

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do you create a daemon in Python?

Searching on Google reveals x2 code snippets. The first result is to this code recipe which has a lot of ... one sample better than the other, and why? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - How to handle button clicks using the XML onClick within Fragments

Pre-Honeycomb (Android 3), each Activity was registered to handle button clicks via the onClick tag in a Layout ... the Activity to the fragment they belong to? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - Sort array of objects by object fields

How can I sort this array of objects by one of its fields, like name or count ? Array ( [0] => stdClass Object ( [ID] ... [name] => Kathy [count] => 4354 ) .... Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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debugging - How do I debug "Error: spawn ENOENT" on node.js?

When I get the following error: events.js:72 throw er; // Unhandled 'error' event ^ Error: spawn ... installing gulp using nodejs on windows (strange case) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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xsd - XML attribute vs XML element

At work we are being asked to create XML files to pass data to another offline application that will then create a ... when to use an attribute or an element? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Detect Click into Iframe using JavaScript

I understand that it is not possible to tell what the user is doing inside an iframe if it is cross domain. ... have no control over the tags that are used. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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PHP - concatenate or directly insert variables in string

I am wondering, What is the proper way for inserting PHP variables into a string? This way: echo "Welcome ... is better formatting or accepted as more proper. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Taking subarrays from numpy array with given stride/stepsize

Lets say I have a Python Numpy array a. a = numpy.array([1,2,3,4,5,6,7,8,9,10,11]) I want to create ... :i+5] Is there a cleaner way to implement this in Numpy? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - What is a "cache-friendly" code?

What is the difference between "cache unfriendly code" and the "cache friendly" code? How can I make sure I write cache-efficient code? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do I commit case-sensitive only filename changes in Git?

I have changed a few files name by de-capitalize the first letter, as in Name.jpg to name.jpg. Git does not ... I have not made any changes to the file itself. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to import CSV file data into a PostgreSQL table?

How can I write a stored procedure that imports data from a CSV file and populates the table? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Get unique values from a list in python

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Given a DateTime object, how do I get an ISO 8601 date in string format?

Given: DateTime.UtcNow How do I get a string which represents the same value in an ISO 8601-compliant format? Note ... am looking for is: yyyy-MM-ddTHH:mm:ssZ Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to make asynchronous HTTP requests in PHP

Is there a way in PHP to make asynchronous HTTP calls? I don't care about the response, I just want ... my application, or triggering long processes. Any ideas? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How can I add or update a query string parameter?

With javascript how can I add a query string parameter to the url if not present or if it present, update ... I am using jquery for my client side development. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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232 views

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php - Can't use method return value in write context

I would think the following piece of code should work, but it doesn't (Edited: Now works in PHP 5.5+): if (! ... What does this mean? Isn't this just a read? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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229 views

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Simple Android grid example using RecyclerView with GridLayoutManager (like the old GridView)

I know that RecyclerView has replaced the functionality of the old ListView and GridView. I am looking for a ... view in each cell responds to click events Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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interface - Multiple Inheritance in C#

Since multiple inheritance is bad (it makes the source more complicated) C# does not provide such a pattern directly. But ... hand is a pure pain in the ass. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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129 views

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javascript - ng-repeat finish event

I want to call some jQuery function targeting div with table. That table is populated with ng-repeat. When I call it on ... use it with ng-repeat and my div... Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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node.js - Push items into mongo array via mongoose

Basically I have a mongodb collection called 'people' whose schema is as follows: people: { name: String, friends: [{ ... : "Harry", lastName: "Potter"}}}); Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - What is the size limit of a post request?

Sorry if this is duplicate,I would think it would be but couldn't find anything. I have a flex application that I ... in flex, web server is php, DB is mySql. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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351 views

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Formatting Decimal places in R

I have a number, for example 1.128347132904321674821 that I would like to show as only two decimal places when output to ... ). -- Answer: round(x, digits=2) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How do you create different variable names while in a loop?

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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307 views

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physics - Android accelerometer accuracy (Inertial navigation)

I was looking into implementing an Inertial Navigation System for an Android phone, which I realise is hard given the ... I've made some errors in my coding? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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211 views

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html - JavaScript blob filename without link

How do you set the name of a blob file in JavaScript when force downloading it through window.location? ... set the filename as my-download.json instead. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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85 views

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android - How to store image in SQLite database

In my application I am uploading an image from gallery and I want to store this image in the SQLite database. How do I ... imv; ImageView imvd, imvf; } } } } } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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