Recent questions tagged dictionary

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dictionary - How to use enum as index key type in typescript?

Consider following example. enum DialogType { Options, Help } class Dialog { test() : string { return ""; } } ... DialogType'? (Or can I? ) See Question&Answers more detail:os...

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

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dictionary - Why are there no hashtables in the C standard library?

Why is that there is no Hashtable support as part of Standard C Library? Is there any specific reason for this? See Question&Answers more detail:os...

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

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dictionary - Java map.get(key) - automatically do put(key) and return if key doesn't exist?

I am sick of the following pattern: value = map.get(key); if (value == null) { value = new ... yielded nothing relevant. Any suggestions? See Question&Answers more detail:os...

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

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dictionary - Pretty-print a Map in Java

I am looking for a nice way to pretty-print a Map. map.toString() gives me: {key1=value1, key2=value2, ... elegant and concise way to do this. See Question&Answers more detail:os...

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

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dictionary - How can I print out C++ map values?

I have a map like this: map<string, pair<string,string> > myMap; And I've inserted some data into my map using: ... out all the data in my map? See Question&Answers more detail:os...

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

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dictionary - Is it safe to remove selected keys from map within a range loop?

How can one remove selected keys from a map? Is it safe to combine delete() with range, as in the code ... https://play.golang.org/p/u1vufvEjSw See Question&Answers more detail:os...

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

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dictionary - Sentiment Analysis Dictionaries

I was wondering if anybody knew where I could obtain dictionaries of positive and negative words. I'm looking into ... a crucial part of it. See Question&Answers more detail:os...

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

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dictionary - Is a python dict comprehension always "last wins" if there are duplicate keys

If I create a python dictionary with a dict comprehension, but there are duplicate keys, am I guaranteed that the ... be 111, rather than 100? See Question&Answers more detail:os...

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

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dictionary - Why do these two for loop variations give me different behavior?

I'm seeing different behavior in my program that's tied to this particular loop in my program but I'm not ... it's always updating the pointer? See Question&Answers more detail:os...

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

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dictionary - How to recover from concurrent map writes?

How do you recover from a runtime panic on a "concurrent map read and map write"? The usual defer with recover ... Please add recovery code. :) See Question&Answers more detail:os...

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

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dictionary - Most elegant way to join a Map to a String in Java 8

I love Guava, and I'll continue to use Guava a lot. But, where it makes sense, I try to use the "new ... 8 (without any 3rd party libraries)? See Question&Answers more detail:os...

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

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dictionary - How can I convert immutable.Map to mutable.Map in Scala?

How can I convert immutable.Map to mutable.Map in Scala so I can update the values in Map? See Question&Answers more detail:os...

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

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dictionary - Why Can't I store references in a `std::map` in C++?

I understand that references are not pointers, but an alias to an object. However, I still don't understand what ... just not sure how to :/ See Question&Answers more detail:os...

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

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dictionary - Can a JPA Query return results as a Java Map?

We are currently building a Map manually based on the two fields that are returned by a named JPA query ... using OpenJPA, not hibernate) See Question&Answers more detail:os...

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

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dictionary - Android HashMap in Bundle?

The android.os.Message uses a Bundle to send with it's sendMessage-method. Therefore, is it possible to put a HashMap inside a Bundle? See Question&Answers more detail:os...

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

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dictionary - C++ Help finding the max value in a map

I've been doing a basic program to find the max, min, median, variance, mode etc. of a vector. Everything ... here. http://pastebin.com/MzPENmHp See Question&Answers more detail:os...

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

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dictionary - Where to find dictionaries for other languages for IntelliJ?

IntelliJ spellchecker comes with only English and Arabic bundled (strange, I think it is made in east Europe ... German dictionary for IntelliJ. See Question&Answers more detail:os...

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

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dictionary - why dict objects are unhashable in python?

I mean why cant we put key of dict as dict? that means we can't have dictionary having key as another dictionary... See Question&Answers more detail:os...

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

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dictionary - swift: modifying arrays inside dictionaries

How can I easily add elements to an array inside a dictionary? It's always complaining with could not find ... 't be efficient nor elegant. See Question&Answers more detail:os...

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

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dictionary - First item from a Map on JavaScript ES2015

I have a Map like this: const m = new Map(); m.set('key1', {}) . m.set('keyN' {}) the Mapcan have ... without a iterator loop? like: m.get()[0] See Question&Answers more detail:os...

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

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dictionary - Java API for plural forms of English words

Are there any Java API(s) which will provide plural form of English words (e.g. cacti for cactus)? See Question&Answers more detail:os...

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

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dictionary - Elegant way of counting occurrences in a java collection

Given a collection of objects with possible duplicates, I'd like end up with a count of occurrences per object. ... allows for a shorter code. See Question&Answers more detail:os...

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

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dictionary - How do I interpolate a variable as a key in a JavaScript object?

How can I use the value of the variable a as a key to lookup a property? I want to be able to say: b ... variable. Maybe an eval could be used? See Question&Answers more detail:os...

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

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dictionary - Group by field name in Java

I'm trying to group Java objects by their field, i.e Person.java public class Person { String name; ... grouping-objects-using-objects-property/ See Question&Answers more detail:os...

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

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dictionary - Group by field name in Java

I'm trying to group Java objects by their field, i.e Person.java public class Person { String name; ... grouping-objects-using-objects-property/ See Question&Answers more detail:os...

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

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552 views

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dictionary - How do I merge dictionaries together in Python?

d3 = dict(d1, **d2) I understand that this merges the dictionary. But, is it unique? What if d1 has ... has priority if there is duplicate key. See Question&Answers more detail:os...

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

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610 views

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dictionary - How to set default value to all keys of a dict object in python?

I know you can use setdefault(key, value) to set default value for a given key, but is there a way to set ... every key I didn't yet set. See Question&Answers more detail:os...

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

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dictionary - How to putAll on Java hashMap contents of one to another, but not replace existing keys and values?

I need to copy all keys and values from one A HashMap onto another one B, but not to replace existing keys and ... putAll(Bmap); A.putAll(temp); See Question&Answers more detail:os...

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

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