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Activity for elgonzoâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
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A: WPF MVVM ListBox not updating `List` is not observable. In other words, `List` does not offer a mechanism through which it could signal that its content has changed. If it is possible/permissible to modify the Demo class, then use `ObservableCollection`, `BindingList` or something similar instead. As their type names suggests,... (more) |
— | about 2 years ago |
| Answer | — |
A: Uncaught TypeError: Failed to construct 'FormData' Your Javascript code uses the following selector for the document.querySelector(...) invocation: ``` #prcfform ``` The selector string starting with an `#` indicates an ID selector, with the actual ID following the `#`. Note that in a selector string, the leading `#` is not part of the ID to be s... (more) |
— | over 2 years ago |
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A: Tags are highlighting while my favourite tags is empty I found simple steps to repro the issue on Firefox: 1. In your preferences, set some favourite tag(s). Make sure you click outside of the favourite tags edit field to make sure the edit field has lost input focus.(When the edit field is losing input focus, data in the browser's local storage is up... (more) |
— | almost 3 years ago |
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A: Input taking only first character of a string Your pointer `function` is uninitialized. From some documentation pages for `scanf` at https://man7.org/linux/man-pages/man3/scanf.3.html : > s >Matches a sequence of non-white-space characters; the next pointer must be a pointer to the initial element of a chara... (more) |
— | almost 3 years ago |
| Answer | — |
A: Detecting balanced parentheses in Python Use a stack while just scanning your string once from left to right. No need for multiple (performance-wise) expensive string replacements. If implemented right, the stack will only ever contain at maximum `len(s)/2` elements. The algorithm is rather straightforward: Check first whether the str... (more) |
— | almost 3 years ago |
| Answer | — |
A: Validate All Object Properties with JSON Schema If the names of the properties in the jobs and people objects are variable, you can use the `patternProperties` keyword instead of the `properties` keyword in the respective schemas for jobs and people. As per specification for `patternProperties` (https://json-schema.org/draft/2020-12/json-schema... (more) |
— | almost 3 years ago |
| Answer | — |
A: Difference between puts and print for Array The official ruby documentation explains the observed difference between the outputs of `print` and `puts`. The important bits are as follows: print For any non-string object given as argument (such as an array, for example), `print` invokes the object's `tos` method and outputs the resulti... (more) |
— | almost 3 years ago |