我认为,我要推动对阵列的关键价值。
例如,在公共卫生和社会福利部中,情况就是如此:
$err = array();
function check($k,$v) {
$err[$k] = $v;
}
如何在 Java/Script文Script中做到这一点?
我认为,我要推动对阵列的关键价值。
例如,在公共卫生和社会福利部中,情况就是如此:
$err = array();
function check($k,$v) {
$err[$k] = $v;
}
如何在 Java/Script文Script中做到这一点?
Javascript key/ Value pair support in Object , not in <
http://www.ohchr.org。
var arr= [1,2,3],
result = {};
for(var key in arr) {
result[key] = arr[key]; // in this case key will be 0,1,2 i.e index of array element
}
www.un.org/spanish/ecosoc 关键在于:
function checking(k, v) {
if(result.k != null || result.k != undefined) {
// do something
}
}
根据您的职能:
var err = {}; // not array, should be object
function check(k,v) {
err[k] = v; // or err.k = v;
}
More on insert:
var x = [];
x.some = some ; // OK; arrays are objects
x[ some ] = some ; // exactly the same
<>光值:
x.home; // give some
x[ home ]; // give some
www.un.org/spanish/ecosoc 长度:
如果你想要获得一个阵列的长度,你必须使用<代码>。
For example:
x.length; // will return 1
如果你想计算目标的时间长度:
var obj = {a: XYZ , b: PQR };
Object.keys(obj).length; // will return 2
删除项目
如果您想从一个目标中删除一个项目:
delete obj[key];
删除一个阵列的项目:
delete arr[index]; // index is position of the element within array
并且删除你可以做的阵容要素
arr.splice(0,2); // splice(index, howmany, [item1, item2, ...., itemx])
// in this example from start 2 items will delete
你使用物体。 这样做也大体相同。
var $err = {};
function check($k, $v) {
$err[$k] = $v;
}
虽然如此,但这不是一个阵列。
确实,你可以实际在瓦贾布特阵列这样做,口译员将让你来。
var $err = []; // an array
function check($k, $v) {
$err[$k] = $v;
}
但是,你并没有真正推动阵列,而是将阵列扩大到
var foo = [];
foo[ hello ] = world ;
console.log(foo); // []
console.log(foo[ hello ]); // world
console.log(foo.hello); // world
console.log(foo.length); // 0
......最好看看看看这一道:D
How to get a selected text inside a iframe. I my page i m having a iframe which is editable true. So how can i get the selected text in that iframe.
I would like to click a link in my page using javascript. I would like to Fire event handlers on the link without navigating. How can this be done? This has to work both in firefox and Internet ...
Heres the problem, In Masterpage, the google analytics code were pasted before the end of body tag. In ASPX page, I need to generate a script (google addItem tracker) using codebehind ClientScript ...
Is there a reliable way to access the client machine s clipboard using Javascript? I continue to run into permissions issues when attempting to do this. How does Google Docs do this? Do they use ...
I have a large javascript which I didn t write but I need to use it and I m slowely going trough it trying to figure out what does it do and how, I m using alert to print out what it does but now I ...
Is it possible for someone to give me a few pointers on how to display a multidimensional array in the form of a bar graph? The array is multidimensional, with three elements in each part - and the ...
Is it possible to reload a form after file-input change? I have a form where the user can chose an image for upload. I also have a php script which displays that image resized. I only wonder if it ...
I ve made a little forum and I want parse the date on newest posts like twitter, you know "posted 40 minutes ago ","posted 1 hour ago"... What s the best way ? Thanx.