我有一份 Java文reg,在座标上打上相应的编号,我可以乘以。
foo1 bar2.7 .replace(/(d+.?d*)/g, parseInt( $1 , 10) * 2);
我愿回到<条码>foo2 条码5条码>,但返回<条码>。
我在这里做了什么错误?
我有一份 Java文reg,在座标上打上相应的编号,我可以乘以。
foo1 bar2.7 .replace(/(d+.?d*)/g, parseInt( $1 , 10) * 2);
我愿回到<条码>foo2 条码5条码>,但返回<条码>。
我在这里做了什么错误?
<代码>parseInt( 1 , 10) * 2首先执行,其result通过replace
。 您希望利用反馈功能:
foo1 bar2.7 .replace(/(d+.?d*)/g, function(match, number) {
return +number * 2;
});
Furthermore, parseInt
will round down any floating point value, so the result would be "foo2 bar4"
. Instead you can use the unary plus operator to convert any numerical string into a number.
页: 1
Instead, you can pass a function to replace
like so:
foo1 bar2.7 .replace(/(d+.?d*)/g, function (str) {
return parseInt(str, 10) * 2;
});
https://developer.mozilla.org/en/Javagust/Reference/Global_Objects/String/replace#Specification_a_Function_as_a_paraile”rel=“nofollow”>MDC article , 内容是作为参数通过String.replace<>
请注意,如果你有一个以上组别,你可以做如下事情:
"p-622-5350".replace(/p-(d+)-(d+)/, function (match, g1, g2) {
return "p-" + (+g1 * 10) + "-" + (+g2 *10);
});
(单位:千美元)
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.