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Shell/Bash 2021-08-30 03:08:02
bash print keys of awk array
# Example usage for printing keys: awk '{ a[$1]=$2 } END { for (key in a) { print key } }' input_file # Where: # - The above statement prints all keys in the awk array/dictionary # made from the input_file # - a[$1] is an array/dictionary in which the fi... Add solution -
Other 2021-08-29 09:18:02
encode an array containing non-utf values
Note that if you try to encode an array containing non-utf values, you'll get null values in the resulting JSON string. You can batch-encode all the elements of an array with the array_map function: <?php $encodedArray = array_map(utf8_encode, $... Add solution -
Shell/Bash 2021-08-28 14:09:02
awk: can't read value of a; it's an array name.
# Example usage for printing keys: awk '{ a[$1]=$2 } END { for (key in a) { print key } }' input_file # Where: # - The above statement prints all keys in the awk array/dictionary # made from the input_file # - a[$1] is an array/dictionary in which the fi... Add solution -
Javascript 2021-08-28 00:09:02
react proptypes
import PropTypes from 'prop-types'; MyComponent.propTypes = { // You can declare that a prop is a specific JS type. By default, these // are all optional. optionalArray: PropTypes.array, optionalBool: PropTypes.bool, optionalFunc: PropTypes.fun... Add solution -
Java 2021-08-27 22:52:01
read csv java android
import com.opencsv.CSVReader; import java.io.IOException; import java.io.FileReader; ... try { CSVReader reader = new CSVReader(new FileReader("yourfile.csv")); String[] nextLine; while ((nextLine = reader.readNext()) != null) { ... Add solution