mirror of https://github.com/chylex/TweetDuck.git
50 lines
1.0 KiB
JavaScript
50 lines
1.0 KiB
JavaScript
/**
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* Throws if an object is missing any property in the chain.
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* @param {Object} obj
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* @param {...string} chain
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*/
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export function ensurePropertyExists(obj, ...chain) {
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for (const prop of chain) {
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if (obj.hasOwnProperty(prop)) {
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obj = obj[prop];
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}
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else {
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throw "Missing property '" + prop + "' in chain [obj]." + chain.join(".");
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}
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}
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}
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/**
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* Returns true if an object has every property in the chain.
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* Otherwise, returns false and triggers a debug-only error message.
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* @param {Object} obj
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* @param {...string} chain
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* @returns {boolean}
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*/
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export function checkPropertyExists(obj, ...chain) {
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try {
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ensurePropertyExists(obj, ...chain);
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return true;
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} catch (err) {
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crashDebug(err);
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return false;
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}
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}
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/**
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* Reports an error to the console, and also shows an error message if in debug mode.
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*/
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export function crashDebug(message) {
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console.error(message);
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debugger;
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if ("$TD" in window) {
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window.$TD.crashDebug(message);
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}
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}
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/**
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* No-op function.
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*/
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export function noop() {}
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