FullStackFaqs - Code Answers

5qpt0yu.js

function roundUp(num, prec) {
  prec = Math.pow(10, prec);
  return Math.ceil(num * prec) / prec;
}

function roundDown(num, prec) {
  prec = Math.pow(10, prec);
  return Math.floor(num * prec) / prec;
}
// Built in Math function
console.log(Math.round(10.5)) // --> 11

// Custom Math Functions for Rounding Up/Down based on Precision
console.log(roundUp(1.85, 1)) // --> 1.9
console.log(roundDown(1.85, 1)) // --> 1.8

anc4mfc.js

// Remove all whitespace
function delWS1(str) {
  return str.replace(/\s/g,"");
}

// Remove trailing and leading whitepsace
function delWS2(str) {
  return str.replace(/^[ ]+|[ ]+$/g,'');
}

// Remove trailing and leading whitepsace with built in prototype trim
function delWS3(str) {
  return str.trim();
}

console.log(delWS1("! Hello World !")) // --> "!HelloWorld!"
console.log(delWS2("  Hello World  ")) // --> "Hello World"
console.log(delWS3("  Hello World  ")) // --> "Hello World"