Bitte sagen Sie mir, was diese JS-Aussage bedeutet?
var aa= {},
bb= [{name: 'aa1'},{name: 'aa2'}];
Code oben.
等價(jià)于
var aa = {};
var bb = [{name: 'aa1'},{name: 'aa2'}];
等價(jià)于
var aa;
var bb;
aa = {};
bb = [{name: 'aa1'},{name: 'aa2'}];
給 aa 初始化為一個(gè)空對(duì)象,給 bb 初始化為一個(gè)數(shù)組,含有兩個(gè)對(duì)象
聲明aa是個(gè)空對(duì)象,bb是個(gè)數(shù)組,數(shù)組里有兩個(gè)對(duì)象屬相是name,值分別為aa1和aa2