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function test1() {
function push(arr, x) {
return arr.push(x);
}
var arr = [];
for (var i=0; i<100; i++) {
assertEq(push(arr, i), i + 1);
}
}
test1();
function test2() {
var arr;
for (var i=0; i<60; i++) {
arr = [];
assertEq(arr.push(3.3), 1);
assertEq(arr.push(undefined), 2);
assertEq(arr.push(true), 3);
assertEq(arr.push(Math), 4);
assertEq(arr.toString(), "3.3,,true,[object Math]");
}
}
test2();
function test3() {
function push(arr, v) {
arr.push(v);
}
for (var i=0; i<60; i++) {
var arr = [];
push(arr, null);
push(arr, 3.14);
push(arr, {});
assertEq(arr.toString(), ",3.14,[object Object]");
}
}
test3();