If you give someone a program , you will frustrate them for a day; if you teach them how to program, you will frustrate them for a lifetime.IT 這段話的意思是，如果你交給某人一隻程式，你將折磨他一整天;如果你教會某人如何寫程式，你將折磨他一輩子。

部落格全站分類：數位生活

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Jan 01 Mon 2018 01:00
使用Array的原型使對象具有length，和數組的內容 - gaocong

文章出處

  var elems = {
        length: 0,
        add: function (elem) {
            Array.prototype.push.call(this, elem);
        },
        gather: function (id) {
            this.add(document.getElementById(id));
        }
    };
    elems.gather("first");
    console.log(elems.length == 1 && elems[0].id, "Verify that we have an element in our stash");
    elems.gather("second");
    console.assert(elems.length == 2 && elems[1].id, "Verify the other insertion");