The Map[K, V] module provides a generic hash map with operator overloading for bracket access. |
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Create a Map and add entries using bracket syntax or put. |
include "lang/map.vel";
Map[str, int] ages = new Map[str, int]();
ages["Alice"] = 30;
ages["Bob"] = 25;
ages.put("Charlie", 35);
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Bracket access returns V directly. Use getOrDefault for a fallback value. |
int age = ages["Alice"]; # 30
int eveAge = ages.getOrDefault("Eve", 0); # 0
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Check, insert conditionally, and remove entries. |
bool has = ages.key("Bob"); # true
bool added = ages.putIfAbsent("Diana", 28); # true
bool removed = ages.del("Charlie"); # true
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Iterate using keys() and vals(). |
array[str] k = ages.keys();
array[int] v = ages.vals();
int i = 0;
while (i < k.len) {
# process k[i] and v[i]
i = i + 1;
};
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