24 lines
736 B
TypeScript
24 lines
736 B
TypeScript
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/**
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* Gets a key within an object. The key supports dot syntax for retrieving deep
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* fields - e.g. "a.b.c".
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* Exact matches of keys with dots in them take precedence over nested keys of
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* the same path - e.g. getting "a.b" from { "a.b": "foo", a: { b: "bar" } }
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* will return "foo" over "bar".
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* @param obj the object
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* @param key the key
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* @return {*|null} the value or null if a value was not found for this key
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*/
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export const deepGet = (obj: { [x: string]: any }, key: string) => {
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if (!obj || !key) {
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return null
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}
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if (Object.prototype.hasOwnProperty.call(obj, key)) {
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return obj[key]
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}
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const split = key.split(".")
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for (let i = 0; i < split.length; i++) {
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obj = obj?.[split[i]]
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}
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return obj
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}
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