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ecmascript 6 - What does arrow function '() => {}' mean in Javascript?

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

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c - strtok segmentation fault

I am trying to understand why the following snippet of code is giving a segmentation fault: void tokenize(char* ... line without copying it into an array? Question&Answers:os...

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

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python - "Unorderable types: int() < str()"

I'm trying to make a retirement calculator right now on Python. There's nothing wrong with the syntax but when I ... str() Any ideas how I could solve this? Question&Answers:os...

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

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java - How to Insert Image into JTable Cell

Can someone point me in the right direction on how to add an image into Java Table cell. Question&Answers:os...

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

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python - How can this function be rewritten to implement OrderedDict?

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

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dom - How to use getElementsByClassName in javascript-function?

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

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javascript - How do I sort an array of objects based on the ordering of another array?

I have a list of objects: [ { id: 4, name:'alex' }, { id: 3, name:'jess' }, { id: 9, name:'...' }, { id: 1, ... id: 9, name:'...' }, { id: 4, name:'alex' } ] Question&Answers:os...

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

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database - ADO.Net EF - how to define foreign key relation in model first approach?

I have been having previous issues regards to class inheritance and structuring a database around this and using the ... I prevent this from happening? Thanks. Question&Answers:os...

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

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opencv - I want to change the colors in image with python from specific color range to another color

I want to change the brown areas to RED (or another color). Just I don't know how to get the ranges for brown ... , but not a range of colors. Any Ideas? Thanks Question&Answers:os...

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

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javascript - Can't throw error from within an async promise executor function

I've been trying to get a conceptual understanding of why the following code doesn't catch the throw. If you ... , why throw doesn't work here. Thanks! Question&Answers:os...

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

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c++ - How to achieve smooth tangent space normals?

I'm trying to add bump mapping functionality to my application but I'm getting very faceted models: The reason ... somehow so the model doesn't appear faceted? Question&Answers:os...

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

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python - Comprehension for flattening a sequence of sequences?

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

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r - Multiple use of the positional `$` operator to update nested arrays

This question is closely related to this one and I will consider the advice given with respect to schema design in a ... if I didn't get the R syntax right. Question&Answers:os...

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

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Sqlite insert query not working with python?

I have been trying to insert data into the database using the following code in python: import sqlite3 as db ... an error saying module not found. Please help? Question&Answers:os...

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

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A single-line loop with a mandatory pair of braces in Java

The code in the following snippet works just fine. It counts the number of objects created using a static ... though the loop contains only a single statement? Question&Answers:os...

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

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filter - Prolog: Filtering a list?

I'm currently working on a very short project on Prolog, and just got stuck trying to apply a "filter" I have ... and modify it for my needs. Thanks in advance! Question&Answers:os...

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

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Nested strtok function problem in C

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

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cookies - PHP - setcookie(); not working

I've made a login, that sets a cookie with a value of the imputed email address, so in the global.php file, it ... <input type="submit" value="Login"> </form> Question&Answers:os...

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

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r - Make a group_indices based on several columns

I would like to generate indices to group observations based on two columns. But I want groups to be made ... group_indices from dplyr, but haven't managed it. Question&Answers:os...

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

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c# - Get the value for a listbox item by index

This must be very easy but I am stuck. I have a listBox with X Items. Each Item has a text description (Which ... an item, using the index number of the item. Question&Answers:os...

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

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three.js - How does the calculation of the light model work in a shader program?

I am trying to read up this tutorial: https://aerotwist.com/tutorials/an-introduction-to-shaders-part-2/ but I ... three.js experience might be able to tell me. Question&Answers:os...

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

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sql - is there a group_concat function in ms-access?

is there a group_concat function in ms-access or something similar? Question&Answers:os...

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

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c - Short circuit evaluation and side effects

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

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w3c validation - How to validate vendor prefixes in CSS like -webkit- and -moz-?

I use the webkit/mozilla border radius and box shadow CSS properties, but I want the CSS to validate (which it ... validate? http://jigsaw.w3.org/css-validator/ Question&Answers:os...

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

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java - Image/Graphic into a Shape

I was wondering whether there is any way to convert an image/graphic into a Shape? For example, can I convert the ... is there a way to do a custom shape? Question&Answers:os...

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

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html - Apply style to parent if it has child with CSS

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

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iis 7 - Classic ASP on IIS7: refusing to send errors to browser on 500 Internal Server Error

I have classic ASP running on IIS 7. Even though I configured the ASP "Debugging Properties" to "Send Errors to ... (not sure if that matters) Any ideas? Question&Answers:os...

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

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hoisting - 'Hoisted' JavaScript Variables

I do not fully understand why the following displays "hoisted" towards the end. var x = 'set'; var y = ... "hoisted" y(); Any pointers would be appreciated. Question&Answers:os...

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

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