QGIS/resources/function_help/json/array_to_string
2022-01-12 10:26:38 -05:00

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{
"name": "array_to_string",
"type": "function",
"groups": ["Arrays"],
"description": "Concatenates array elements into a string separated by a delimiter and using optional string for empty values.",
"arguments": [
{"arg":"array", "description":"the input array"},
{"arg":"delimiter","optional":true,"default":"','","description":"the string delimiter used to separate concatenated array elements"},
{"arg":"empty_value","optional":true,"default":"''","description":"the optional string to use as replacement for empty (zero length) matches"}],
"examples": [{
"expression":"array_to_string(array('1','2','3'))",
"returns":"'1,2,3'"
}, {
"expression":"array_to_string(array(1,2,3),'-')",
"returns":"'1-2-3'"
}, {
"expression":"array_to_string(array('1','','3'),',','0')",
"returns":"'1,0,3'"
}],
"tags": ["concatenates", "delimiter", "join", "aggregate"]
}