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3 min readTo shuffle a list of sequence numbers in Bash, you can use the shuf command. First, create an array containing the sequence of numbers you want to shuffle. Then, use the shuf command to shuffle the array.
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5 min readTo push an item to an array in Kotlin, you can use the plus operator or the plusAssign operator.Using the plus operator, you can create a new array by adding the new item to the existing array. For example: val originalArray = arrayOf("item1", "item2", "item3") val newItem = "item4" val newArray = originalArray.plus(newItem) Using the plusAssign operator, you can directly add the new item to the existing array.
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4 min readTo implement brushing and zooming in D3.js, you can use the brush and zoom functions provided by D3 library. Brushing allows users to select a range on a chart to interact with the data, while zooming allows users to zoom in and out of the chart.To add brushing and zooming functionality to a D3.js chart, you can start by setting up the scales and the axes for the chart. Then, you can create the brush and zoom functions by using the d3.brush() and d3.zoom() methods.
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5 min readTo exclude certain file paths in a bash script, you can use the find command with the -not option to exclude specific files or directories. You can also use the grep command to filter out specific paths based on patterns or criteria. Another approach is to use the find command with the -prune option to skip certain directories while searching for files. Additionally, you can use conditional statements and regular expressions to exclude specific file paths in your bash script.
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5 min readTo use STOMP in Kotlin, you first need to include the necessary dependencies in your project. You can add dependencies for STOMP in your build.gradle file or pom.xml file, depending on the build system you are using. Once you have added the dependencies, you can create a STOMP client instance and connect to a STOMP endpoint using the appropriate URL.You can subscribe to STOMP topics or queues to receive messages from the server.
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8 min readHierarchical visualizations, such as treemaps and sunbursts, can be created in D3.js by following a few key steps. Firstly, you will need to define the hierarchical data structure that represents the relationships between different elements in your dataset. This can be done using D3's tree or cluster layouts.Next, you will need to use the data join method in D3 to bind the hierarchical data to DOM elements.
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6 min readTo replace a string in binary files using bash, you can use the sed command with the -i option. This option allows you to perform an in-place edit of the file. You can specify the search string and the replacement string as arguments to the sed command. For example, to replace the string "oldstring" with "newstring" in a binary file named "filename.bin", you can use the following command: sed -i 's/oldstring/newstring/g' filename.
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6 min readTo initialize an array in Kotlin Native with a generic type T, you can use the arrayOf function followed by the toCValues() extension function to convert the array elements to C values. Here's an example code snippet: // Define a generic class class ArrayWrapper<T>(val size: Int) { val array: Array<T> = arrayOfNulls<Any>(size) as Array<T> init { array.
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5 min readTo create custom shapes in D3.js, you can use the SVG path data to define your own shapes. This involves specifying a series of commands such as moveTo, lineTo, arcTo, etc. to create the desired shape. You can also use the d3.svg.symbol function to create predefined shapes like circles, squares, triangles, etc. Additionally, you can customize these shapes by specifying parameters such as size, rotation, fill color, stroke color, etc.
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3 min readTo compare folder sizes in bash/sh, you can use the du command to display the size of each folder in bytes. You can also use a combination of du and sort commands to list the folders in descending order of size. Another option is to use the awk command to sum up the sizes of all folders and then compare them using conditional statements. By using these commands and techniques, you can easily compare folder sizes in bash/sh and determine which folder is larger or smaller.
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6 min readIn Kotlin, you can load a public RSA key by reading the key from a file or a string representation and converting it into an instance of the PublicKey class. First, you need to create a KeyFactory object for RSA algorithm. Then, you can use this KeyFactory to generate the public key from the byte array or string representation of the key. Finally, you can use the generated public key for encryption or verification purposes.