45 lines
1.1 KiB
TypeScript
45 lines
1.1 KiB
TypeScript
export default function arePropsShallowEqual(currentProps: AnyLiteral, newProps: AnyLiteral) {
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if (currentProps === newProps) {
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return true;
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}
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const currentKeys = Object.keys(currentProps);
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const currentKeysLength = currentKeys.length;
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const newKeysLength = Object.keys(newProps).length;
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if (currentKeysLength !== newKeysLength) {
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return false;
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}
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if (currentKeysLength === 0) {
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return true;
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}
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for (let i = 0; i < currentKeysLength; i++) {
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const prop = currentKeys[i];
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if (currentProps[prop] !== newProps[prop]) {
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return false;
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}
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}
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return true;
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}
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export function getUnequalProps(currentProps: AnyLiteral, newProps: AnyLiteral) {
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const currentKeys = Object.keys(currentProps);
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const currentKeysLength = currentKeys.length;
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const newKeysLength = Object.keys(newProps).length;
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if (currentKeysLength !== newKeysLength) {
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return ['%LENGTH%'];
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}
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return currentKeys.reduce((res, prop) => {
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if (currentProps[prop] !== newProps[prop]) {
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res.push(`${prop}: ${currentProps[prop]} => ${newProps[prop]}`);
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}
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return res;
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}, [] as string[]);
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}
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