Javascript 从字符串 jquery 中删除字符串
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Remove string from string jquery
提问by user525146
Ignore my novice knowledge in jquery. I started to learn recently and I have a challenge in front of me. I have a checkbox with names checkbox_0, checkbox_1 and want to remove "checkbox_" from the strings so that I would use the 0, 1 in my loop to extract the data for that index. Thanks
忽略我在jquery中的新手知识。我最近开始学习，我面前有一个挑战。我有一个名为 checkbox_0、checkbox_1 的复选框，想从字符串中删除“checkbox_”，以便我在循环中使用 0, 1 来提取该索引的数据。谢谢
aData value alerts me the value checkbox_0, checkbox_1 etc. those are the checkboxes selected.
aData 值提醒我值 checkbox_0、checkbox_1 等。这些是选中的复选框。
submitButton.on("click", function() {
$("Table :checked").each(function(e) {
var iData =Table.fnGetData( this.parentNode);
// Strip of the checkbox_ from the string
for(var i=0; i<=iData.length; i++) {
aData = iData[i][7];
}
alert(aData);
Table.fnDraw();
});
});
回答by T.J. Crowder
This is just a JavaScript, not a jQuery, thing.
这只是一个 JavaScript，而不是 jQuery。
To remove the first occurence of the work "checkbox_":
要删除工作“checkbox_”的第一次出现：
var updatedString = originalString.replace("checkbox_", "");
Or if you know it'll always be in the form "checkbox_n"where nis a digit,
或者如果你知道它总是以数字的形式"checkbox_n"出现n，
var updatedString = originalString.substring(9);
...which chops the first nine characters off the string.
...从字符串中删除前九个字符。
In either case, you end up with a string. If you want a number, you can use parseInt:
在任何一种情况下，您最终都会得到一个字符串。如果你想要一个数字，你可以使用parseInt：
var updatedString = parseInt(originalString.replace("checkbox_", ""), 10);
// or
var updatedString = parseInt(originalString.substring(9), 10);
...or just put a +in front of it to cause an automatic cast (but note that in that case, both decimal and hex strings will be handled):
...或者只是+在它前面放一个来导致自动转换（但请注意，在这种情况下，十进制和十六进制字符串都将被处理）：
var updatedString = +originalString.replace("checkbox_", "");
// or
var updatedString = +originalString.substring(9);
Note that I've written updatedString = originalString.blah(...);but of course you can replace your reference, e.g., "originalString = originalString.blah(...);`.
请注意，我已经写过，updatedString = originalString.blah(...);但您当然可以替换您的参考，例如，“originalString = originalString.blah(...);”。
More to explore:
更多探索：
回答by rabbidrabbit
submitButton.on("click", function() {
$("Table :checked").each(function(e) {
var iData =Table.fnGetData( this.parentNode);
// Strip of the checkbox_ from the string
for(var i=0; i<=iData.length; i++) {
aData = iData[i].replace("checkbox_", "");
}
alert(aData);
Table.fnDraw();
});
});
回答by D. Strout
To remove the checkbox_part, you can simply do this:
要移除checkbox_零件，您只需执行以下操作：
cbName=cbName.replace("checkbox_", "");
To do this for all your checkboxes inside the .each()loop:
要对.each()循环内的所有复选框执行此操作：
var cbIndex=this.name.replace("checkbox_", "");
//or...
var cbIndex=this.name.split("checkbox_").join("");
回答by gdoron is supporting Monica
There are many ways to do it, some of them:
有很多方法可以做到，其中一些：
$("table :checked").each(function() {
var theNumber = this.name.replace(/\D/g, "");
var theNumber = this.name.replace(/[^\d]/g, ""); // or this
var theNumber = this.name.match(/\d/g).join(); // or this
