/**
* Extracts all double-precision floating-point numbers containing explicit
* decimal points from a given input string.
*
* @param input - Source text containing mixed text and numeric tokens.
* @returns An array of parsed floating-point numbers.
*/
function extractFloats(input: string): number[] {
if (!input || input.trim() === "") {
return [];
}
// Regular expression matching standalone numbers containing an explicit decimal point.
// \b ensures word boundary alignment; \d+\.\d+ requires digits before and after the dot.
const floatPattern: RegExp = /\b\d+\.\d+\b/g;
// String.prototype.matchAll returns a lazy iterator of Match objects.
// Array.from builds the output array while converting
// string matches to primitive numbers in one pass.
const matches: IterableIterator<RegExpMatchArray> = input.matchAll(floatPattern);
return Array.from(matches, (match: RegExpMatchArray): number => Number(match[0]));
}
/**
* Main execution function demonstrating usage.
*/
function main(): void {
// Example input string with explicit type annotation
const s: string = "c/c++ c# go 893725.1045 java python 3.14 php 0.0076 javascript";
const floatNumbers: number[] = extractFloats(s);
console.log("Extracted floating-point numbers:");
for (const num of floatNumbers) {
console.log(num);
}
}
main();
/*
run:
Extracted floating-point numbers:
893725.1045
3.14
0.0076
*/
