@frauschert/ts-guard/lib/guards/isMap/isMap.js

ts-guard is a typescript library that provides composable type guards. Its inspired by zod but focusses only on type guards and is more lightweight.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isMap = isMap;
function isMap(keyGuard, valueGuard) {
    return (value) => {
        if (!(value instanceof Map)) {
            return false;
        }
        for (const [key, val] of value.entries()) {
            if (!keyGuard(key) || !valueGuard(val)) {
                return false;
            }
        }
        return true;
    };
}
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