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How can I generate zip file without saving to the disk with Ruby?

I have generated many PDF files in memory and I want to compress them into one zip file before sending it as a ... can-i-generate-zip-file-without-saving-to-the-disk-with-ruby...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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511 views

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asp.net - The current .NET SDK does not support targeting .NET Core 3.0 | 3.1 | 5.0

I've just downloaded the release version of .NET Core 3.0.100 It was installed alongside older version that I have: When I ... sdk-does-not-support-targeting-net-core-3-0-3-1-5-0...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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109 views

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multithreading - How to prefetch data using a custom python function in tensorflow

I am trying to prefetch training data to hide I/O latency. I would like to write custom Python code that ... /how-to-prefetch-data-using-a-custom-python-function-in-tensorflow...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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185 views

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How to define Servlet filter order of execution in Spring Boot application

I am trying to set the order of execution of 2 filters in my spring boot application which have same url ... to-define-servlet-filter-order-of-execution-in-spring-boot-application...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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103 views

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Android - Best way to implement LocationListener across multiple activities

I have been stuck on this problem for quite some time. I am working on an app that uses ... /5783611/android-best-way-to-implement-locationlistener-across-multiple-activities...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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250 views

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c# - AngularJS Web Api AntiForgeryToken CSRF

I have an AngularJS Single Page Application (SPA) hosted by an ASP.NET MVC application. The back- ... //stackoverflow.com/questions/32460196/angularjs-web-api-antiforgerytoken-csrf...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Why was HTML5 Web Workers support removed from the Android browser in versions 2.2 and up?

I'm trying to learn something about JavaScript threading. And from a tutorial I learned about HTML5 API web ... -web-workers-support-removed-from-the-android-browser-in-versions...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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344 views

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Spring Property Injection in a final attribute @Value - Java

A simple question on Spring injection from a properties file for a final attribute. I have a properties file ... /7130425/spring-property-injection-in-a-final-attribute-value-java...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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wpf - Grid's SharedSizeGroup and * sizing

I have a user control, call it UserControl, that has a grid with the following column definitions: ... https://stackoverflow.com/questions/4664008/grids-sharedsizegroup-and-sizing...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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200 views

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sql - How to insert date values into table

How can I insert into table with different input using / ,with date datatype? insert into run(id,name,dob ... .com/questions/34329852/how-to-insert-date-values-into-table...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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235 views

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java - How should I log uncaught exceptions in my RESTful JAX-RS web service?

I have a RESTful web service running under Glassfish 3.1.2 using Jersey and Jackson: @Stateless @LocalBean @Produces( ... -log-uncaught-exceptions-in-my-restful-jax-rs-web-service...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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289 views

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sorting - SQLite count, group and order by count

I have a table that looks like this: FOO BAR BAZ ----+----+---- foo1 bar1 baz1 foo2 bar3 baz2 ... https://stackoverflow.com/questions/6744803/sqlite-count-group-and-order-by-count...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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180 views

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hibernate - Multiple SQL import files in Spring Boot

Going by the Spring Boot reference manual, there are a couple of ways in which we can import data on ... .com/questions/24508223/multiple-sql-import-files-in-spring-boot...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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208 views

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List comprehension in R

Is there a way to implement list comprehension in R? Like python: sum([x for x in range(1000) if x ... from:https://stackoverflow.com/questions/15998716/list-comprehension-in-r...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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190 views

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html - Should I include a <meta generator> tag?

Suppose I have some sort of proprietary web framework. Should I include a <meta generator="My framework"> tag ... .com/questions/3632166/should-i-include-a-meta-generator-tag...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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187 views

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objective c - Pass a class as a parameter?

I have been lead to believe that it is possible to pass a class as a method parameter, but I'm having ... https://stackoverflow.com/questions/1030605/pass-a-class-as-a-parameter...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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108 views

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android - How to make an API request in Kotlin?

I am extremely new to Kotlin and APIs in general and can't find the syntax to create an API request using this ... .com/questions/45219379/how-to-make-an-api-request-in-kotlin...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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variable assignment - Why is `a = a` `nil` in Ruby?

I watched this video. Why is a = a evaluated to nil if a is not defined? a = a # => nil b = c = ... from:https://stackoverflow.com/questions/8908050/why-is-a-a-nil-in-ruby...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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203 views

1 answer

Is the Service Locator pattern any different from the Abstract Factory pattern?

At first glance, the Service Locator pattern looks the same as the Abstract Factory pattern to me. They ... service-locator-pattern-any-different-from-the-abstract-factory-pattern...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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402 views

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excel - Determine if a cell (value) is used in any formula

(Closed.) This question does not meet Stack Overflow guidelines. It is not currently accepting answers. question from:https: ... /determine-if-a-cell-value-is-used-in-any-formula...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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508 views

1 answer

python - Select elements of numpy array via boolean mask array

I have a boolean mask array a of length n: a = np.array([True, True, True, False, False]) I have ... .com/questions/19984102/select-elements-of-numpy-array-via-boolean-mask-array...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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143 views

1 answer

javascript - How do I get a computed style?

Can anybody please help me with a script.. or a way to get the value of height : 1196px; width: 284px; from ... ://stackoverflow.com/questions/5910004/how-do-i-get-a-computed-style...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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253 views

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ruby - YAML How many spaces per indent?

Is there any difference if i use one space, two or four spaces per indent level in YAML? Are there any ... ://stackoverflow.com/questions/42247535/yaml-how-many-spaces-per-indent...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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403 views

1 answer

c# - Is it ok to derive from System.ArgumentException?

If I have a method that checks the validity of its arguments, is it ok to throw my own custom exceptions ... com/questions/12857708/is-it-ok-to-derive-from-system-argumentexception...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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242 views

1 answer

ios - What is the difference between In House versus Ad Hoc distribution for Enterprise apps?

I have an Apple iOS Enterprise account and am creating a distribution provisioning profile, and was surprised to ... -between-in-house-versus-ad-hoc-distribution-for-enterpris...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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183 views

1 answer

Maven: Overview for the values of Maven properties

I would like to find out the values of all Maven properties as they apply to some Maven project. mvn ... com/questions/12317609/maven-overview-for-the-values-of-maven-properties...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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146 views

1 answer

ios - @property definitions with ARC: Is strong default now?

Just running the ARC refactoring tool on the new xcode 4.3.1 and noticed that my (nonatomic, retain) ... com/questions/9773604/property-definitions-with-arc-is-strong-default-now...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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815 views

1 answer

python - Django Models (1054, "Unknown column in 'field list'")

No idea why this error is popping up. Here are the models I created - from django.db import models from ... .com/questions/3787237/django-models-1054-unknown-column-in-field-list...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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