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[英]Typescript,'NodeListOf<Element>' is not an array type or a string type
[英]When i try to compile typescript code into javascript, getting **Type 'NodeListOf<Element>' is not an array type or a string type**
当我尝试将打字稿代码编译为javascript时,获得Type'NodeListOf'不是数组类型或字符串类型 。
if (query.length) {
var regex = new RegExp("(" + query + ")", "gm");
var li = document.querySelectorAll("#id li"); //error
for (var Element of li){
Element.innerHTML = Element.innerHTML.replace(regex, '<span class="classname">$1</span>');
}
}
}
下面的编译很好,我已经添加了内联注释。
let query = '';
if (query.length) {
var pattern = new RegExp("(" + query + ")", "gim");
var li: NodeListOf<Element> = document.querySelectorAll("#test li");
// ES5 does not allow TS iteration of NodeListOf<Element> nor use of Array.from
// so it is necessary to loop over it manually.
// Note that Element is an existing type which caused a conflict with "(var Element of list)".
// It was necessary to rename Element to element.
for (let i = 0; i < li.length; i++) {
let element = li[i];
element.innerHTML = element.innerHTML.replace(pattern, '<span class="target">$1</span>');
}
}
这也可以:
let elements: any = document.querySelectorAll(".class");
for(let ele of elements) {
// do stuff
}
试试这个..将解决问题。
if (query.length) { var pattern = new RegExp("(" + query + ")", "gim"); var li = document.querySelectorAll("#test li"); for (var Element of <any> li){ Element.innerHTML = Element.innerHTML.replace(pattern, '<span class="target">$1</span>'); } }
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