const regex = /(<[^>]*)(\[\s*@?[-_a-zA-Z0-9.$]*%?\s*])(=)(["'])/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('(<[^>]*)(\\[\\s*@?[-_a-zA-Z0-9.$]*%?\\s*])(=)(["\'])', 'gm')
const str = `<div [ ngStyle ]="{'max-width.px': i * 2 + 5}"></div>
<div [ngClass]="[
'class-one',
'class-two',
'class-three'
]"></div>
<div [style.right.%]="val"></div>
<div [@animation.trigger]="val"></div>
<img [attr.aria-label]="val" />
<div [my-property]="val"></div>
<div [my_property]="val"></div>
<div [myProperty\$]="val"></div>
/// BELOW SHOULD RETURN NO MATCH
<div [%invalidProperty]="val"></div>
<div [invalidProperty)="val"></div>
<div>[my-property]="val"</div>
<div>
[my-property]="val"
</div>`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions