Source code
Revision control
Copy as Markdown
Other Tools
// |reftest| skip-if(!this.hasOwnProperty("Intl"))
// "stripIfInteger" with fractional digits.
{
let nf1 = new Intl.NumberFormat("en", {
minimumFractionDigits: 2,
});
let nf2 = new Intl.NumberFormat("en", {
minimumFractionDigits: 2,
trailingZeroDisplay: "auto",
});
let nf3 = new Intl.NumberFormat("en", {
minimumFractionDigits: 2,
trailingZeroDisplay: "stripIfInteger",
});
assertEq(nf1.resolvedOptions().trailingZeroDisplay, "auto");
assertEq(nf2.resolvedOptions().trailingZeroDisplay, "auto");
assertEq(nf3.resolvedOptions().trailingZeroDisplay, "stripIfInteger");
assertEq(nf1.format(123), "123.00");
assertEq(nf2.format(123), "123.00");
assertEq(nf3.format(123), "123");
}
// "stripIfInteger" with significand digits.
{
let nf1 = new Intl.NumberFormat("en", {
minimumSignificantDigits: 2,
});
let nf2 = new Intl.NumberFormat("en", {
minimumSignificantDigits: 2,
trailingZeroDisplay: "auto",
});
let nf3 = new Intl.NumberFormat("en", {
minimumSignificantDigits: 2,
trailingZeroDisplay: "stripIfInteger",
});
assertEq(nf1.resolvedOptions().trailingZeroDisplay, "auto");
assertEq(nf2.resolvedOptions().trailingZeroDisplay, "auto");
assertEq(nf3.resolvedOptions().trailingZeroDisplay, "stripIfInteger");
assertEq(nf1.format(1), "1.0");
assertEq(nf2.format(1), "1.0");
assertEq(nf3.format(1), "1");
}
// "stripIfInteger" with rounding increment.
{
let nf1 = new Intl.NumberFormat("en", {
minimumFractionDigits: 2,
maximumFractionDigits: 2,
roundingIncrement: 5,
});
let nf2 = new Intl.NumberFormat("en", {
minimumFractionDigits: 2,
maximumFractionDigits: 2,
roundingIncrement: 5,
trailingZeroDisplay: "auto",
});
let nf3 = new Intl.NumberFormat("en", {
minimumFractionDigits: 2,
maximumFractionDigits: 2,
roundingIncrement: 5,
trailingZeroDisplay: "stripIfInteger",
});
assertEq(nf1.resolvedOptions().trailingZeroDisplay, "auto");
assertEq(nf2.resolvedOptions().trailingZeroDisplay, "auto");
assertEq(nf3.resolvedOptions().trailingZeroDisplay, "stripIfInteger");
assertEq(nf1.format(1.975), "2.00");
assertEq(nf1.format(1.97), "1.95");
assertEq(nf1.format(1.975), "2.00");
assertEq(nf2.format(1.975), "2.00");
assertEq(nf2.format(1.97), "1.95");
assertEq(nf2.format(1.975), "2.00");
assertEq(nf3.format(1.975), "2");
assertEq(nf3.format(1.97), "1.95");
assertEq(nf3.format(1.975), "2");
}
// Invalid values.
for (let trailingZeroDisplay of ["", "true", true, "none", "yes", "no"]){
assertThrowsInstanceOf(() => new Intl.NumberFormat("en", {trailingZeroDisplay}), RangeError);
}
if (typeof reportCompare === "function")
reportCompare(true, true);