如何改变离子标签的文本

Question

我有一个指令，应该将一个字符串附加到离子标签元素。

# coding: utf-8
from dask import delayed

@delayed
def load(filename):
    print("Load " +filename)
    return filename

@delayed
def clean(data):
    if data == 'c.data':
        return None  # <========== Aborting
    print("clean " + data)
    return data

@delayed
def analyze(sequence):
    for s in sequence:
        if not s:
            continue
        print("Analyzing " + s)

inputs = ['a.data','b.data', 'c.data']
loads = [load(i) for i in inputs]
cleaned = [clean(x) for x in loads]

analysis = analyze(cleaned)
analysis.visualize()
analysis.compute()

如何访问＆＃34; blah＆＃34;离子标签元素中的文本值？

innerHTML和innerText都是＆＃34;＆＃34;。 childNodes和children都是长度为0。

Answer 1

因为在构造函数中，视图未呈现，因此无法获取innerHTML。将代码移至ngAfterViewInit以等待视图完全呈现。

ngAfterViewInit(){
  this.el.nativeElement.innerHTML = this.el.nativeElement.innerHTML.concat('<span> * </span>');
}