[ad_1] You are most likely mixing tabs with spaces now that you have edited the question the indention looks correct and it indeed works as intended with what you have posted. So the only other thing is your actual file you are executing has mixed tabs and spaces so the indention is incorrect. A good … Read more
[ad_1] An array is a series of values with no defining keys: [‘one’, ‘two’, ‘three’] An object uses keys which have values which can be anything within the scope of the language. eg: boolean, integer, string, object, array or event functions: { one: { two: ‘three’ }, four: [‘five’, ‘six’], seven: ‘eight’, nine: 10, eleven: … Read more
[ad_1] Do you really mean java.lang.Object or do you mean a class of your own making? You can get into the java world if you have appropriately defined a your class with the following (Google Gson): BossesClass hisClass = new Gson().fromJson(bossesString, BossesClass.class); What you use as the key value (a String) in your map is … Read more
[ad_1] You should show what you have written, or we have no way of knowing what might be a “better way” You should probably take a look at Parallel::ForkManager. Using that module your program could look something like this There’s a lot missing from this code, most importantly use strict and use warnings ‘all’, and … Read more
[ad_1] Welcome to the Rails world! First thing to mention is that Ruby is a language, and Rails is a framework that uses Ruby language. Migrations are a part of Rails and are not a part of Ruby. Now to your question about migrations. Yes, each table needs migrations for its creation and later migrations … Read more
[ad_1] You need to use web socket for real time notification. You can try Ratchet or socket.io. 3 [ad_2] solved How Can I Implement Realtime Notification On My Php Page
[ad_1] You could make use of Java 8 Stream API and implement something like this: public static void main(String[] args) { PaymentDetailsItem payment = new PaymentDetailsItem(“test”, “100.00”, 10, “1”); PaymentDetailsItem payment2 = new PaymentDetailsItem(“test number 2”, “250.00”, 10, “2”); List<PaymentDetailsItem> payments = new ArrayList<>(); payments.add(payment); payments.add(payment2); List<String> amounts = payments.stream().map(PaymentDetailsItem::getAmount).collect(Collectors.toList()); System.out.println(“Here we have the extracted … Read more
[ad_1] It means you try to call find_all on the value None. That could be row.tbody for example, perhaps because there is no <tbody> in the actual HTML. Keep in mind that the <tbody> element is implied. It’ll be visible in your browser’s DOM inspector, but that doesn’t mean it is actually present in the … Read more
[ad_1] If you are trying to delete characters from an existing file, you should use fseek. printing ‘\b’ won’t help. 3 [ad_2] solved fprintf outputs 0x08 when printing backspace [closed]
[ad_1] There is a solution with a time complexity of O(T): Use the formula for sum of integers 1+2+3+…+n = n*(n+1)/2. Also note that 3+6+9+…+(3*n) = 3*(1+2+3+…+n) = 3*n*(n+1)/2. Figure out how many numbers divisible by 3 there are. Calculate their sum. Figure out how many numbers divisible by 5 there are. Calculate their sum. … Read more
[ad_1] If there’s really a business reason to cater for the situation where your variable is null, then you the developer should provide an else block. Concerning literature, yes there is actually a performance cost to throwing exceptions, so it’s recommended you avoid your app throwing exceptions as much as possible. You can read more … Read more
[ad_1] You can start by iterating over the array and count the number of times each element occurs. Since you want the first instance of the least common value, you’ll also need to store the index the first time the value occurs since you can’t depend on the order they’re inserted into the object as … Read more
[ad_1] You would use an Anonymous Inner Class, as Java 8 lambda expressions are essentially syntatical sugar which do nearly the same thing. That would look something like this. files.addAll(Arrays.asList(folder.listFiles(new FileFilter(){ @Override public boolean accept(File f) { return f.getName().endsWith(CustomConstantsRepository.FILE_EXT_DAT) && f.getName().startsWith(fileName))); } }))); [ad_2] solved File Lambda expression in Java 7
[ad_1] It’s called Circular Dependency. If you google it, you’ll find many articles and resources about it, one of them. To sum up what they are offering, one thing you can do is to use Interfaces, and program against interface, but not concrete class. Another option is to have third project with core functionality, and … Read more
[ad_1] Try with split() used for split the string by delimiter \n and Array#forEach method used for iterate the Array after the split string var a=”\nStructure=xyz\nIds=123,456,678,235″; var one = a.trim().split(‘\n’); var res ={}; one.forEach(a=> res[a.split(‘=’)[0]]=a.split(‘=’)[1]) //one.forEach(function(a){ res[a.split(‘=’)[0]]=a.split(‘=’)[1]}) for IE or unsupported Arrow function console.log(res) 1 [ad_2] solved Convert String in JavaScript to an Object