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@Govsg · Post #1518 · 06.10.2022 г., 10:39
How is the Government working towards making public housing affordable for Singaporeans? Read on to find out more. #PublicHousing#HousingAffordability Infographics: Ministry of National Development
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Изворен канал @pythonotes · Post #32 · 7 фев.
Скорее всего уже слышали, что складывать строки через + это плохая практика. Падение производительности, и всё такое. Без лишних слов, давайте измерять: from timeit import timeit def t1(): # складываем 10 строк через + из переменной t = 'text' for _ in range(1000): s = t + t + t + t + t + t + t + t + t def t2(): # склеиваем список строк через метод join arr = ['text'] * 10 for _ in range(1000): s = ''.join(arr) def t3(): # складываем через + но не из переменной а непосредственно инлайн объекты for _ in range(1000): s = 'text' + 'text' + 'text' + ... # всего 10 раз Теперь каждую строку склейки запустим по 10М раз >>> timeit(t1, number=10000) 0.21951690399964718 >>> timeit(t2, number=10000) 1.4978306379998685 >>> timeit(t3, number=10000) 0.2213820789993406 Хм, а нам говорили что через "+" это плохо и медленно ))) 😁 Тут стоит учитывать, что речь идёт о склейке множества длинных строк. Давайте изменим условия: def t4(): t = 'text'*100 for _ in range(1000): s = t + t + t + t + t + t + t + t + t def t5(): arr = ['text'*100] * 10 for _ in range(1000): s = ''.join(arr) def t6(): for _ in range(1000): s = 'text'*100 + 'text'*100 + ... # всего 10 раз >>> timeit(t4, number=10000) 12.795130728000004 >>> timeit(t5, number=10000) 2.642637542999182 >>> timeit(t6, number=10000) 0.2184546610005782 Вот, уже другой разговор, сразу видна разница, в среднем в 6 раз. Но погодите, почему последний тест t6() по скорости такой же как и t3()? Ведь строки теперь в 100 раз длиннее! Это вопросы оптимизации кода, какие простые изменения ускоряют или замедляют выполнение программы. Мы столкнулись с примером обхода обращения к переменной. Например, именно так работает директива #define в С++, во время компиляции подставляя значение переменной вместо ссылки на неё. В Python это тоже работает, но часто ли вы сможете встретить такой способ работы со строками? К сожалению, способ почти только теоретический. В целом, тесты показали то, что мы хотели. Делаем выводы самостоятельно. Полный листинг 🌍 #tricks
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MND Singapore
@mndsingapore · Post #380 · 05.10.2022 г., 09:55
We are committed to keeping public housing affordable and accessible, to meet the housing aspirations of Singaporeans. A wide range of BTO flats are available for first-time homebuyers, with different housing needs and budgets. #publichousing#singapore
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MND Singapore
@mndsingapore · Post #341 · 10.06.2022 г., 09:45
Besides providing our basic need for shelter, our living environment can also encourage interactions among residents, build a sense of belonging, foster vibrant communities, and promote healthy lifestyles. To meet the growing needs and diverse aspirations of Singaporeans, we need to continuously transform our built environment to accommodate these shifts. For instance, we will pilot assisted living housing options to care for an ageing population. To find out more about our land use plans and strategies, visit the Long-Term Plan Review exhibition: ➡️ Now till 4 August 2022 📍 At the URA Centre ➡️ More info: go.gov.sg/ltprexhibit #LTPR2021#Longtermplanreview#Publichousing
MND Singapore
@mndsingapore · Post #389 · 13.10.2022 г., 02:17
How does HDB determine the prices of new flats? #MNDExplains#publichousing#BTO
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@mndsingapore · Post #331 · 01.06.2022 г., 08:39
We recognise that the construction delays have caused inconvenience and affected the life plans for flat buyers. While we are not out of the woods yet, we are gradually turning the corner. Housing & Development Board will continue to work closely with the contractors to minimise delays, without compromising the safety and well-being of workers, as well as the quality of the flats. At the same time, we will ramp up our BTO supply to meet the strong housing demand. #Housingaccessibility#BTO#Publichousing
MND Singapore
@mndsingapore · Post #190 · 22.07.2021 г., 02:16
The Covid-19 pandemic has hit the construction industry hard, leading to a delay in many projects, including HDB BTO flats. Hear what Minister Desmond Lee has to say about support for BTO flat buyers. #publichousing#HDB#BuildSG#SGTogether https://youtu.be/i3hxLHY9eb0
MND Singapore
@mndsingapore · Post #336 · 03.06.2022 г., 02:21
All flat buyers enjoy a housing subsidy when they buy a BTO flat. In addition, eligible first-timers will receive the Enhanced CPF Housing Grant (EHG) of up to $80,000. For resale flats, eligible first-time homebuyers can receive up to $160,000 in grants. As a result, the vast majority of first-timer families are able to service their monthly HDB housing loans using their CPF, with little or no cash payments. #PublicHousing#bto#housinggrant#HDB
MND Singapore
@mndsingapore · Post #229 · 23.11.2021 г., 14:16
Plans for a new public housing estate at site of the former Police Academy in the Mount Pleasant area were announced today! Around 5,000 new flats will be built to meet the demand for public housing in mature estates. Here’s what you need to know. #MountPleasant#Heritage#OldPoliceAcademy#Publichousing