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add lodash
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Chuiantw1212 committed May 10, 2024
1 parent ba43323 commit 24e4ff6
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Showing 3 changed files with 238 additions and 5 deletions.
8 changes: 3 additions & 5 deletions components/calculator/asset.vue
Original file line number Diff line number Diff line change
Expand Up @@ -313,11 +313,9 @@ function drawLifeAssetChart(propagate = true) {
labels.push(year)
pv = fv
}
if (fv <= 0) {
ElMessage.error('財務危機!')
} else {
ElMessage.closeAll()
}
// if (fv <= 0) {
// ElMessage.error('資產:財務危機!')
// }
const datasets = [
{
label: 'ETF增值',
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4 changes: 4 additions & 0 deletions components/calculator/retirement.vue
Original file line number Diff line number Diff line change
Expand Up @@ -227,6 +227,7 @@
import { ref, computed, shallowRef, reactive } from 'vue'
import Chart from 'chart.js/auto';
import econSelect from '../econSelect.vue'
import { ElMessage, } from 'element-plus'
interface IOptionItem {
label: string,
value: string | number | boolean,
Expand Down Expand Up @@ -580,6 +581,9 @@ async function drawRetirementAssetChart(propagate = false) {
labels.push(calculatedYear)
pv = fv
}
// if (fv <= 0) {
// ElMessage.error('退休,晚節不保!')
// }
// 繪圖
const tension = 0.5
const datasets = [
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231 changes: 231 additions & 0 deletions components/lodash.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,231 @@
function isObject(value) {
const type = typeof value;
return value != null && (type === 'object' || type === 'function');
}

/** Detect free variable `global` from Node.js. */
const freeGlobal = typeof global === 'object' && global !== null && global.Object === Object && global

/** Detect free variable `globalThis` */
const freeGlobalThis = typeof globalThis === 'object' && globalThis !== null && globalThis.Object === Object && globalThis

/** Detect free variable `self`. */
const freeSelf = typeof self === 'object' && self !== null && self.Object === Object && self

/** Used as a reference to the global object. */
const root = freeGlobalThis || freeGlobal || freeSelf || Function('return this')()

/**
* Creates a debounced function that delays invoking `func` until after `wait`
* milliseconds have elapsed since the last time the debounced function was
* invoked, or until the next browser frame is drawn. The debounced function
* comes with a `cancel` method to cancel delayed `func` invocations and a
* `flush` method to immediately invoke them. Provide `options` to indicate
* whether `func` should be invoked on the leading and/or trailing edge of the
* `wait` timeout. The `func` is invoked with the last arguments provided to the
* debounced function. Subsequent calls to the debounced function return the
* result of the last `func` invocation.
*
* **Note:** If `leading` and `trailing` options are `true`, `func` is
* invoked on the trailing edge of the timeout only if the debounced function
* is invoked more than once during the `wait` timeout.
*
* If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
* until the next tick, similar to `setTimeout` with a timeout of `0`.
*
* If `wait` is omitted in an environment with `requestAnimationFrame`, `func`
* invocation will be deferred until the next frame is drawn (typically about
* 16ms).
*
* See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
* for details over the differences between `debounce` and `throttle`.
*
* @since 0.1.0
* @category Function
* @param {Function} func The function to debounce.
* @param {number} [wait=0]
* The number of milliseconds to delay; if omitted, `requestAnimationFrame` is
* used (if available).
* @param {Object} [options={}] The options object.
* @param {boolean} [options.leading=false]
* Specify invoking on the leading edge of the timeout.
* @param {number} [options.maxWait]
* The maximum time `func` is allowed to be delayed before it's invoked.
* @param {boolean} [options.trailing=true]
* Specify invoking on the trailing edge of the timeout.
* @returns {Function} Returns the new debounced function.
* @example
*
* // Avoid costly calculations while the window size is in flux.
* jQuery(window).on('resize', debounce(calculateLayout, 150))
*
* // Invoke `sendMail` when clicked, debouncing subsequent calls.
* jQuery(element).on('click', debounce(sendMail, 300, {
* 'leading': true,
* 'trailing': false
* }))
*
* // Ensure `batchLog` is invoked once after 1 second of debounced calls.
* const debounced = debounce(batchLog, 250, { 'maxWait': 1000 })
* const source = new EventSource('/stream')
* jQuery(source).on('message', debounced)
*
* // Cancel the trailing debounced invocation.
* jQuery(window).on('popstate', debounced.cancel)
*
* // Check for pending invocations.
* const status = debounced.pending() ? "Pending..." : "Ready"
*/
function debounce(func, wait, options) {
let lastArgs;
let lastThis;
let maxWait;
let result;
let timerId;
let lastCallTime;
let lastInvokeTime = 0;
let leading = false;
let maxing = false;
let trailing = true;

// Bypass `requestAnimationFrame` by explicitly setting `wait=0`.
const useRAF = !wait && wait !== 0 && typeof root.requestAnimationFrame === 'function';

if (typeof func !== 'function') {
throw new TypeError('Expected a function');
}
wait = +wait || 0;
if (isObject(options)) {
leading = !!options.leading;
maxing = 'maxWait' in options;
maxWait = maxing ? Math.max(+options.maxWait || 0, wait) : maxWait;
trailing = 'trailing' in options ? !!options.trailing : trailing;
}

function invokeFunc(time) {
const args = lastArgs;
const thisArg = lastThis;

lastArgs = lastThis = undefined;
lastInvokeTime = time;
result = func.apply(thisArg, args);
return result;
}

function startTimer(pendingFunc, milliseconds) {
if (useRAF) {
root.cancelAnimationFrame(timerId);
return root.requestAnimationFrame(pendingFunc);
}
// eslint-disable-next-line @typescript-eslint/no-implied-eval
return setTimeout(pendingFunc, milliseconds);
}

function cancelTimer(id) {
if (useRAF) {
root.cancelAnimationFrame(id);
return;
}
clearTimeout(id);
}

function leadingEdge(time) {
// Reset any `maxWait` timer.
lastInvokeTime = time;
// Start the timer for the trailing edge.
timerId = startTimer(timerExpired, wait);
// Invoke the leading edge.
return leading ? invokeFunc(time) : result;
}

function remainingWait(time) {
const timeSinceLastCall = time - lastCallTime;
const timeSinceLastInvoke = time - lastInvokeTime;
const timeWaiting = wait - timeSinceLastCall;

return maxing ? Math.min(timeWaiting, maxWait - timeSinceLastInvoke) : timeWaiting;
}

function shouldInvoke(time) {
const timeSinceLastCall = time - lastCallTime;
const timeSinceLastInvoke = time - lastInvokeTime;

// Either this is the first call, activity has stopped and we're at the
// trailing edge, the system time has gone backwards and we're treating
// it as the trailing edge, or we've hit the `maxWait` limit.
return (
lastCallTime === undefined ||
timeSinceLastCall >= wait ||
timeSinceLastCall < 0 ||
(maxing && timeSinceLastInvoke >= maxWait)
);
}

function timerExpired() {
const time = Date.now();
if (shouldInvoke(time)) {
return trailingEdge(time);
}
// Restart the timer.
timerId = startTimer(timerExpired, remainingWait(time));
return undefined;
}

function trailingEdge(time) {
timerId = undefined;

// Only invoke if we have `lastArgs` which means `func` has been
// debounced at least once.
if (trailing && lastArgs) {
return invokeFunc(time);
}
lastArgs = lastThis = undefined;
return result;
}

function cancel() {
if (timerId !== undefined) {
cancelTimer(timerId);
}
lastInvokeTime = 0;
lastArgs = lastCallTime = lastThis = timerId = undefined;
}

function flush() {
return timerId === undefined ? result : trailingEdge(Date.now());
}

function pending() {
return timerId !== undefined;
}

function debounced(...args) {
const time = Date.now();
const isInvoking = shouldInvoke(time);

lastArgs = args;
lastThis = this;
lastCallTime = time;

if (isInvoking) {
if (timerId === undefined) {
return leadingEdge(lastCallTime);
}
if (maxing) {
// Handle invocations in a tight loop.
timerId = startTimer(timerExpired, wait);
return invokeFunc(lastCallTime);
}
}
if (timerId === undefined) {
timerId = startTimer(timerExpired, wait);
}
return result;
}
debounced.cancel = cancel;
debounced.flush = flush;
debounced.pending = pending;
return debounced;
}

export default debounce;

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