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Linux Mastering Development

Can’t type non-english characters in terminal

As the title says I can’t type e.x. ř, č, š, etc. in terminal. My keyboard layout is set to Czech and I can type these characters in for e.x. Firefox. I did regenerated my locales with sudo locale-gen en_US.UTF-8 Which did regenerate the Czech locale too. I don’t know if this has anything to […]

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Linux Mastering Development Ubuntu

How can I mass-link files?

I have hundreds of folders, in quantities from one to a couple dozen in each of twenty or more parent folders, each uniquely named (across my entire system) in a way that will cause them all to correctly sort in date order. They’re arranged like this: . ├── ASA Specs ├── Camera Making ├── Camera […]

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Mastering Development

How to divide an array into a tree of buckets sized by powers of two?

How do you take a number representing a list of items, and divide it into chunks, where the number of chunks is a power-of-two, AND where each chunk also has a power-of-two number of items (where size goes up to a max power of two, so 1, 2, 4, 8, 16, 32, 32 being the […]

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Mastering Development

How can I check if I have written a number or a letter in c++?

This is my first time on stackoverflow. I can not figure out how I can check if I have written a number or a letter. If i have written a letter I want the program to say that I neat to write a correct number. Everything is working except the part where the program asks […]

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Mastering Development

How to implement Timer Elapsed Event on UserInterface thread in Xamarin Android

Am implementing a System Timer on Xamarin Android and i have a problem with the elapsed event not raising a dialog box with the message "Time is up" when the countdown is Over… I figured the problem might be not implementing the event on the User Interface thread so i need your help accomplishing that… […]

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Mastering Development

Find out if there’s equal elements in a list in a column in R

I have a column like: > example [,1] Col.1 "a,b,c,d,e" Col.2 "a,e,d" Col.3 "b,e,f" Col.4 "a,e" Here, a and e is equal, because whenever a appears, e also appears. How can I find this? I tried using duplicate() but it only found "duplicate", not really "equal" elements. > dput(example) structure(c("a,b,c,d,e", "a,e,d", "b,e,f", "a,e"), .Dim = […]

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Linux Mastering Development Ubuntu

How can I mass-link files?

I have a large number of folders, in quantities from one to a couple dozen in each of twenty or more parent folders, each uniquely named in a way that will cause them all to correctly sort in date order. I want to create a new folder with symbolic links to each of these folders. […]

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Ask Cooking & Recipes

Butternut Squash Pancakes

One thing I have found when cooking and baking fall foods is that things like squashes and potatoes are so versatile. Not only are squashes and potatoes so good on their own, but they are amazing additives to baked goods. If you have never tried fall veggies in baked goods, check out my Chocolate Chip […]

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User Help

Rsync files based on highest alpha within a date

I’d like to rsync a folder which contains files in the format fixed string<yyyy-mm-dd><version letter>.xml The version letter is a, b, c, … and I only want the files with the latest version for each date. So if there are three files for a given date, I only want the one ending in ‘c’. The […]

Categories
Cryptocurrency Ethereum Mastering Development

How to get transaction hash without waiting for await call?

for my demo I need the transaction hash instantly without waiting for callback of sync call. Here my code: addBlockChain: async(u,n,c,e) => { try { const web3 = new Web3(App.web3Provider); const contract_PartecipazioneContest = new web3.eth.Contract(JSON.parse(App.ABI_PartecipazioneContest), App.ADDR_PartecipazioneContest); const account = App.account; const receipt = await App.send(web3, account, contract_PartecipazioneContest.methods.addUser(u, n, c, e)); return receipt; }catch (error) { […]