本文整理汇总了TypeScript中core/util/array.findLastIndex函数的典型用法代码示例。如果您正苦于以下问题：TypeScript findLastIndex函数的具体用法？TypeScript findLastIndex怎么用？TypeScript findLastIndex使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了findLastIndex函数的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: compute
compute(x) {
// Apply the transform to a single value
let descending;
this.sort(descending = false);
if (this.clip === true) {
if ((x < this._x_sorted[0]) || (x > this._x_sorted[this._x_sorted.length-1])) {
return null;
}
} else {
if (x < this._x_sorted[0]) {
return this._y_sorted[0];
}
if (x > this._x_sorted[this._x_sorted.length-1]) {
return this._y_sorted[this._y_sorted.length-1];
}
}
if (x === this._x_sorted[0]) {
return this._y_sorted[0];
}
const ind = findLastIndex(this._x_sorted, num => num < x);
const x1 = this._x_sorted[ind];
const x2 = this._x_sorted[ind+1];
const y1 = this._y_sorted[ind];
const y2 = this._y_sorted[ind+1];
const ret = y1 + (((x-x1) / (x2-x1)) * (y2-y1));
return ret;
}示例2: compute
compute(x: number): number {
this.sort(false)
if (this.clip) {
if (x < this._x_sorted[0] || x > this._x_sorted[this._x_sorted.length-1])
return NaN
} else {
if (x < this._x_sorted[0])
return this._y_sorted[0]
if (x > this._x_sorted[this._x_sorted.length-1])
return this._y_sorted[this._y_sorted.length-1]
}
let ind: number
switch (this.mode) {
case "after": {
ind = findLastIndex(this._x_sorted, num => x >= num)
break
}
case "before": {
ind = findIndex(this._x_sorted, num => x <= num)
break
}
case "center": {
const diffs = this._x_sorted.map((tx) => Math.abs(tx - x))
const mdiff = min(diffs)
ind = findIndex(diffs, num => mdiff === num)
break
}
default:
throw new Error(`unknown mode: ${this.mode}`)
}
return ind != -1 ? this._y_sorted[ind] : NaN
}示例3: compute
compute(x: number): number {
this.sort(false)
if (this.clip) {
if (x < this._x_sorted[0] || x > this._x_sorted[this._x_sorted.length-1])
return NaN
} else {
if (x < this._x_sorted[0])
return this._y_sorted[0]
if (x > this._x_sorted[this._x_sorted.length-1])
return this._y_sorted[this._y_sorted.length-1]
}
if (x == this._x_sorted[0])
return this._y_sorted[0]
const ind = findLastIndex(this._x_sorted, num => num < x)
const x1 = this._x_sorted[ind]
const x2 = this._x_sorted[ind+1]
const y1 = this._y_sorted[ind]
const y2 = this._y_sorted[ind+1]
return y1 + (((x-x1) / (x2-x1)) * (y2-y1))
}示例4: compute
compute(x) {
// Apply the transform to a single value
let descending, ret;
this.sort(descending = false);
if (this.clip === true) {
if ((x < this._x_sorted[0]) || (x > this._x_sorted[this._x_sorted.length-1])) {
return(null);
}
} else {
if (x < this._x_sorted[0]) {
return this._y_sorted[0];
}
if (x > this._x_sorted[this._x_sorted.length-1]) {
return this._y_sorted[this._y_sorted.length-1];
}
}
let ind = -1;
if (this.mode === "after") {
ind = findLastIndex(this._x_sorted, num => x >= num);
}
if (this.mode === "before") {
ind = findIndex(this._x_sorted, num => x <= num);
}
if (this.mode === "center") {
const diffs = (this._x_sorted.map((tx) => Math.abs(tx - x)));
const mdiff = min(diffs);
ind = findIndex(diffs, num => mdiff === num);
}
if (ind !== -1) {
ret = this._y_sorted[ind];
} else {
ret = null;
}
return(ret);
}示例5: _build_discontinuous_object
_build_discontinuous_object(nanned_qs) {
// _s is @xs, @ys, @sxs, @sys
// an object of n 1-d arrays in either data or screen units
//
// Each 1-d array gets broken to an array of arrays split
// on any NaNs
//
// So:
// { 0: [x11, x12],
// 1: [x21, x22, x23],
// 2: [x31, NaN, x32]
// }
// becomes
// { 0: [[x11, x12]],
// 1: [[x21, x22, x23]],
// 2: [[x31],[x32]]
// }
const ds = {};
for (let i = 0, end = nanned_qs.length; i < end; i++) {
ds[i] = [];
let qs = copy(nanned_qs[i]);
while (qs.length > 0) {
let qs_part;
const nan_index = findLastIndex(qs, (q) => isStrictNaN(q));
if (nan_index >= 0) {
qs_part = qs.splice(nan_index);
} else {
qs_part = qs;
qs = [];
}
const denanned = qs_part.filter((q) => !isStrictNaN(q))
ds[i].push(denanned)
}
}
return ds;
}示例6: _build_discontinuous_object
private _build_discontinuous_object(nanned_qs: number[][]): number[][][] {
// _s is this.xs, this.ys, this.sxs, this.sys
// an object of n 1-d arrays in either data or screen units
//
// Each 1-d array gets broken to an array of arrays split
// on any NaNs
//
// So:
// { 0: [x11, x12],
// 1: [x21, x22, x23],
// 2: [x31, NaN, x32]
// }
// becomes
// { 0: [[x11, x12]],
// 1: [[x21, x22, x23]],
// 2: [[x31],[x32]]
// }
const ds: number[][][] = []
for (let i = 0, end = nanned_qs.length; i < end; i++) {
ds[i] = []
let qs = copy(nanned_qs[i])
while (qs.length > 0) {
const nan_index = findLastIndex(qs, (q) => isStrictNaN(q))
let qs_part
if (nan_index >= 0)
qs_part = qs.splice(nan_index)
else {
qs_part = qs
qs = []
}
const denanned = qs_part.filter((q) => !isStrictNaN(q))
ds[i].push(denanned)
}
}
return ds
}