@wizard9/json-patch-apply/dist/src/common.js

A library for describing, calculating, and applying patches to Javascript Objects.

"use strict";
/**
 This file is part of json-patch-apply.

 json-patch-apply is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 json-patch-apply is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with json-patch-apply.  If not, see <https://www.gnu.org/licenses/>.
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.ValueType = exports.getValueType = exports.firstElement = exports.getValue = exports.hasKey = void 0;
function hasKey(obj, k) {
    return k in obj;
}
exports.hasKey = hasKey;
function getValue(obj, key) {
    return hasKey(obj, key) ? obj[key] : undefined;
}
exports.getValue = getValue;
function firstElement(ops) {
    let first = ops.shift();
    if (first == undefined) {
        throw new Error("cannot get first of empty list");
    }
    return first;
}
exports.firstElement = firstElement;
function getValueType(target) {
    let type = ValueType.primitive;
    if (target instanceof Array) {
        type = ValueType.array;
    }
    else if (target instanceof Object) {
        type = ValueType.object;
    }
    return type;
}
exports.getValueType = getValueType;
var ValueType;
(function (ValueType) {
    ValueType[ValueType["primitive"] = 0] = "primitive";
    ValueType[ValueType["array"] = 1] = "array";
    ValueType[ValueType["object"] = 2] = "object";
})(ValueType = exports.ValueType || (exports.ValueType = {}));
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