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How to sum a list of integers with java streams?

I want to sum a list of Integers. It works as follows, but the syntax does not feel right. Could the code be optimized? ... ().stream().mapToInt(i -> i).sum(); Question&Answers:os...

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

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177 views

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php - Read each line of txt file to new array element

I am trying to read every line of a text file into an array and have each line in a new element. My code so ... = explode(' ', $line_of_text); fclose($file); ?> Question&Answers:os...

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

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90 views

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How to read json file into java with simple JSON library

I want to read this JSON file with java using json simple library. My JSON file looks like this: [ { "name": ... code line which I am missing in my code. Thanks Question&Answers:os...

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

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139 views

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javascript - Add/remove class with jquery based on vertical scroll?

So basically I'd like to remove the class from 'header' after the user scrolls down a little and add ... sure I'm doing something very elementary wrong. Question&Answers:os...

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

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1.0k views

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drop down menu - How can I set the value of a DropDownList using jQuery?

As the question says, how do I set the value of a DropDownList control using jQuery? Question&Answers:os...

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

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578 views

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Remove all special characters except space from a string using JavaScript

I want to remove all special characters except space from a string using JavaScript. For example, abc's test#s should output as abcs tests. Question&Answers:os...

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

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sql server - How to delete large data of table in SQL without log?

I have a large data table. There are 10 million records in this table. What is the best way for this query ... where readTime < dateadd(MONTH,-7,GETDATE()) Question&Answers:os...

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

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regex - Convert a char to upper case using regular expressions (EditPad Pro)

I wrote a regular expression in hope that I will be able to replace every match (that is just one char) to ... a tool that supports such a feature! Thank you! Question&Answers:os...

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

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How to set multiple commands in one yaml file with Kubernetes?

In this official document, it can run command in a yaml config file: https://kubernetes.io/docs/tasks/configure-pod- ... run more than one command, how to do? Question&Answers:os...

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

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Android WebView, how to handle redirects in app instead of opening a browser

So right now in my app the URL I'm accessing has a redirect, and when this happens the WebView will open a ... However, I want to keep everything in my app. Question&Answers:os...

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

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Run a PHP file in a cron job using CPanel

I am just trying to run a PHP script using a cron job within CPanel - is this the correct syntax: /usr/bin ... I need to do anything specific with the PHP file? Question&Answers:os...

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

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python - How do I sum values in a column that match a given condition using pandas?

Suppose I have a column like so: a b 1 5 1 7 2 3 1 3 2 5 I want to sum up the values for b where a = 1, for ... 5 + 7 + 3 = 15. How do I do this in pandas? Question&Answers:os...

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

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237 views

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html - Imitating a blink tag with CSS3 animations

I really want to make a piece of text blink the old-school style without using javascript or text- ... asks how to replace blinking with continuous transitions Question&Answers:os...

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

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818 views

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android - Permission is only granted to system app

I have a System app that uses system permissions and I have those permissions listed in the manifest. Eclipse ... giving an error for a legit manifest file. Question&Answers:os...

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

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333 views

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css - What does flex: 1 mean?

As we all know, the flex property is a shorthand for the flex-grow, flex-shrink, and the flex-basis properties. ... it means and I get nothing when I google. Question&Answers:os...

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

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2.7k views

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regex - Regular expression to allow spaces between words

I want a regular expression that prevents symbols and only allows letters and numbers. The regex below works great, but ... How can I tweak it to allow spaces? Question&Answers:os...

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

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770 views

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geolocation - Get Country of IP Address with PHP

This question already has answers here: Question&Answers:os...

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

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123 views

1 answer

javascript - How to create streams from string in Node.Js?

I am using a library, ya-csv, that expects either a file or a stream as input, but I have a string. How do I convert that string into a stream in Node? Question&Answers:os...

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

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145 views

1 answer

javascript - What is "callback hell" and how and why does RX solve it?

Can someone give a clear definition together with a simple example that explains what is a "callback hell" ... callback hell problem" on that simple example? Question&Answers:os...

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

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99 views

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android - The APK file does not exist on disk

When I am trying debug application on Android Studio gives this log output : The APK file /Users/MyApplicationName/app/ ... . How can I solve it ? Thank you Question&Answers:os...

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

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409 views

1 answer

Where is Xcode's build folder?

Before Xcode 4 the build used to be created in the root folder of my project. I can no longer find it. Where can i find the build folder? Question&Answers:os...

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

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88 views

1 answer

c++ - How to get IOStream to perform better?

Most C++ users that learned C prefer to use the printf / scanf family of functions even when they're coding ... it. Previous references seem to be dead links. Question&Answers:os...

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

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117 views

1 answer

How to build query string with Javascript

Just wondering if there is anything built-in to Javascript that can take a Form and return the query parameters, eg: ... .." I've been wondering this for years. Question&Answers:os...

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

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393 views

1 answer

angularjs - Angular js init ng-model from default values

Say you have a form that has values loaded from database. How do you initialize ng-model? Example: <input name="card[ ... = { description: $('myinput').val() } Question&Answers:os...

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

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235 views

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python - How to convert CSV file to multiline JSON?

Here's my code, really simple stuff... import csv import json csvfile = open('file.csv', 'r') jsonfile = ... ,"Message1" "George","Washington","002","Message2" Question&Answers:os...

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

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399 views

1 answer

spring - What is difference between @RequestBody and @RequestParam?

I have gone through the Spring documentation to know about @RequestBody, and they have given the following ... how they are different from each other. Question&Answers:os...

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

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133 views

1 answer

Java Spring Boot: How to map my app root (“/”) to index.html?

I'm new to Java and to Spring. How can I map my app root http://localhost:8080/ to a static index.html ... ").addResourceLocations("/index.html"); but it fails. Question&Answers:os...

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

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783 views

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ef fluent api - How to do a join in linq to sql with method syntax?

I have seen lots of examples in LINQ to SQL examples on how to do a join in query syntax but I am ... ? Can anyone illustrate or provide another simple example? Question&Answers:os...

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

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