plotboilerplate
Version:
A simple javascript plotting boilerplate for 2d stuff.
56 lines • 1.96 kB
JavaScript
/**
* Wraps a Record<string,string> and adds type conversion methods (developed this in
* some other project) and added this here (2023-10-28).
*
* @author Ikars Kappler
* @version 1.0.0
* @date 2023-03-13
* @modified 2024-08-26 Added the `hasParam` method.
* @modified 2026-05-22 Added the `isValueAllowed` function param to the getter methods.
*/
export class Params {
constructor(baseParams) {
this.baseParams = baseParams;
}
hasParam(name) {
return this.baseParams.hasOwnProperty(name);
}
getString(name, fallback, isValueAllowed) {
let value = this.baseParams[name];
if (typeof value === "undefined" || !value || (value = value.trim()).length === 0) {
return fallback;
}
if (isValueAllowed && !isValueAllowed(value)) {
return fallback;
}
return value;
}
getNumber(name, fallback, isValueAllowed) {
let value = this.baseParams[name];
if (typeof value === "undefined" || !value || (value = value.trim()).length === 0) {
return fallback;
}
var numericValue = Number(value);
if (isValueAllowed && !isValueAllowed(numericValue)) {
return fallback;
}
return numericValue;
}
getBoolean(name, fallback) {
let value = this.baseParams[name];
if (typeof value === "undefined" || !value || (value = value.trim()).length === 0) {
return fallback;
}
value = value.toLocaleLowerCase();
if (value === "1" || value === "on" || value === "yes" || value === "y" || value === "hi" || value == "high") {
return true;
}
else if (value === "0" || value === "off" || value === "no" || value === "n" || value === "lo" || value == "low") {
return false;
}
else {
return Boolean(value);
}
}
}
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