[英]Regular expression wildcard and searching arrays
我試圖遍歷一個數組並將其中的字符串與另一個字符串進行比較,然后將它們添加到新數組中。
var adUnitMacro = 'news' var verticalOutput = [] keywordArray = ['news', 'homepage', 'technology', 'entertainment', 'sport', 'business', 'lifestyle', 'travel', 'motoring', 'property' ] for (i = 0; i < keywordArray.length; i++) { if (keywordArray[i] === adUnitMacro) { verticalOutput.push(keywordArray[i]); } } console.log(verticalOutput) console.log(keywordArray[0])
在此示例中,“新聞”被添加到verticalOutput數組。 但是,如果adUnitMacro變量為'123news123',則不會將任何內容添加到verticalOutput數組中,因為關鍵字數組中的'news'不完全匹配。
如果adUnitMacro中存在關鍵字數組中的字符串,該如何將這些值推入verticalOutput數組中,怎么辦?
例如,如果adUnitMacro = 'newshomepagetechnology'
verticalOutput
數組為['news', 'homepage', 'technology']
嘗試將keywordArray[i] === adUnitMacro
為adUnitMacro.includes(keywordArray[i])
。
您的代碼最終看起來像這樣:
var adUnitMacro = 'news'
var verticalOutput = []
keywordArray = ['news', 'homepage', 'technology', 'entertainment', 'sport',
'business', 'lifestyle', 'travel', 'motoring', 'property'
]
for (i = 0; i < keywordArray.length; i++) {
if (adUnitMacro.includes(keywordArray[i])) {
verticalOutput.push(keywordArray[i]);
}
}
var adUnitMacro = 'newshomepagetechnology' var verticalOutput = [] keywordArray = ['news', 'homepage', 'technology', 'entertainment', 'sport', 'business', 'lifestyle', 'travel', 'motoring', 'property' ] for (i = 0; i < keywordArray.length; i++) { if (adUnitMacro.includes(keywordArray[i])) { verticalOutput.push(keywordArray[i]); } } console.log(verticalOutput) console.log(keywordArray[0])
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