import ballerina/io;function main (string[] args) {
int[] intArray = [1, 2, 3]; int arrayLength;
arrayLength = lengthof intArray;
io:println("Integer array size : " + arrayLength);
json jsonArray = [{"name":"John", "age":31},
{"name":"Neal", "age":22}];
arrayLength = lengthof jsonArray;
io:println("JSON array size : " + arrayLength);
}
LengthofBallerina supports 'lengthof' which returns the length of an array. |
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import ballerina/io;
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function main (string[] args) {
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int[] intArray = [1, 2, 3];
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Here you create integer array with with several integer elements. |
int arrayLength;
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arrayLength = lengthof intArray;
io:println("Integer array size : " + arrayLength);
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Print the length of the created integer array calculated by the ‘lengthof’ unary operator. |
json jsonArray = [{"name":"John", "age":31},
{"name":"Neal", "age":22}];
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Here you create JSON array with several JSON elements. |
arrayLength = lengthof jsonArray;
io:println("JSON array size : " + arrayLength);
}
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Print the length of the created JSON array calculated by the ‘lengthof’ unary operator. |
$ ballerina run lengthof.bal
Integer array size : 3
JSON array size : 2
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