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问题 I have the JSONView extension installed on Chrome, how do I actually use it to view the JSON tree for a particular website? The only options I see are "copy path" and "copy value." 回答1: I don't get your question, the JSON tree for a particular website ? What de you mean by that ? :) I have this great extension too, and when I access for exemple a json data on the web JSONView proceed to parse it for me and give a good looking in order to simplify the reading for me, and it does this

问题 I need to know how can I connect with pervasive database via php. As I know, I have to use ODBC . I configured it on my Windows 7 system and I created table in pervasive server. This is my code, but it does not work: $connect_string = "DRIVER={Pervasive ODBC Client Interface}; SERVERNAME=localhost; SERVERDSN=demodata;"; $conn = odbc_connect($connect_string, 'root', 'root'); 回答1: You probably already have the ODBC drivers installed; I obtained the latest by installing the Pervasive Client from

问题 I have a custom GATT Server working as a plugin using BlueZ 4.101 on Linux. I am now trying to set custom Scan Response advertising data. I am using LightBlue on iOS to debug my GATT Server and advertising parameters. I tried the following code, and LightBlue can see the Advertising Payload and Device Name, but not the Scan Response data. How do I set custom Scan Response data with BlueZ? Thanks. # BLE Name echo "<GATT SERVER> Setting BLE Advertising Name..." btmgmt -i $BLUETOOTH_DEVICE name

问题 I'm having trouble with slow delete queries. I have a schema ,say "target" containing tables that all have an equivalent table (identical columns & primary keys) in another one, say "delta". I now want to delete all rows that appear in the delta schema from the target schema. I have tried this using the DELETE FROM WHERE EXISTS approach, but that seems incredibly slow. Here's an example query: DELETE FROM "target".name2phoneme WHERE EXISTS( SELECT 1 FROM delta.name2phoneme d WHERE

问题 I want to check if a Woocommerce product was created less than 60 days ago. - If true, do something. I am obtaining the date the product was created in backend/admin using the official Woocmmerce function $product->get_date_created . My code partially works, but it seems to be checking if $product->get_date_created literally contains the value 60 instead of perfoming the calculation and minusing 60 days from the current DateTime . I have come to this conclusion because my IF statement runs

问题 When either hashCode() or == operator is overridden in a class, the dart analyzer warns, saying that the other method should also be overridden. Can I implement a similar case on other methods? Or is this feature a special case provided by Dart Analyzer? For exmaple, class A { void method1() {} void method2() {} } class B extends A { @override void method1() {} } At this point I want to produce a warning that class B should also override method2(). Is that possible? 回答1: What you are seeing

问题 I'm trying to make a massive delete, in order to do that I have an Array<number> of the ids I want to delete. I can't pass this array as a parameter to the method this._httpService.delete(uri,options) . The type of _httpService is Http . So I'm looping the array and inside the loop I'm making single calls, but each call is async and I have certain logic to run when the loop ends. 回答1: Actually you can send the id array in the body of a DELETE request, according to this answer, like so: http

问题 I'm trying to create an app where people can upload a CSV and then interact with the data. The specific issues is I'm failing to pass the column headers from the file that is read in to the selectInput function. If you comment out the last few lines for the observe function the app works fine. Have tried a number of options, using reactive instead of renderTable etc. There are some similar questions around addressing changing the select input but none that I could see from a file read in.

问题 I'm trying to add the image caption under each image thumbnail in WooCommerce single product page. Here you can see where I want the text to be showed (presently "undefined") I want to add the individual caption text (not the product title, the image caption. Each image has a different caption). Is there an easy way to do that? I'm using ToolSet and can add JavaScript snippet if needed. I saw a post that talk about this but can't figure it out where to put that code : Show caption under

问题 I am working on a picking legend with matplotlib. The goal is to hide and shows curves, by clicking on the legend. I found this solution (Hiding lines after showing a pyplot figure), which works very well. I want improve this code to adapt automatically the axis after each clic on the legend. I don't know if it is possible. Do you have any hint? Their is an example of what I want on the images below. First of all, the Image 1 represents the graph. Then after clicking on the legend 5*sin(x),