Files
cellxgene/client/src/util/clip.js
T

26 lines
736 B
JavaScript

/*
clip - clip all values in a Array or TypedArray, IN PLACE.
Values in array are clipped if less than `lower` or greater than `upper`.
If `setTo` is undefined, values less than `lower` will be set to `lower`,
and values greater than `upper` will be set to `upper`.
If `setTo` is not undefined, values outside the [lower, upper] range will be set to
`setTo`.
*/
export default function clip(arr, lower, upper, setTo) {
const lowerSet = setTo === undefined ? lower : setTo;
const upperSet = setTo === undefined ? upper : setTo;
for (let i = 0, l = arr.length; i < l; i += 1) {
const v = arr[i];
if (v < lower) {
arr[i] = lowerSet;
} else if (v > upper) {
arr[i] = upperSet;
}
}
return arr;
}